257992020

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{257}}^1$

素因数の和:312

約数の個数: 288

約数和(自身を含む): 951834240

約数和(自身を除く): 693842220

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 13, 15, 18, 20, 22, 26, 27, 30, 33, 36, 39, 44, 45, 52, 54, 55, 60, 65, 66, 78, 90, 99, 108, 110, 117, 130, 132, 135, 143, 156, 165, 169, 180, 195, 198, 220, 234, 257, 260, 270, 286, 297, 330, 338, 351, 390, 396, 429, 468, 495, 507, 514, 540, 572, 585, 594, 660, 676, 702, 715, 771, 780, 845, 858, 990, 1014, 1028, 1170, 1188, 1285, 1287, 1404, 1430, 1485, 1521, 1542, 1690, 1716, 1755, 1859, 1980, 2028, 2145, 2313, 2340, 2535, 2570, 2574, 2827, 2860, 2970, 3042, 3084, 3341, 3380, 3510, 3718, 3855, 3861, 4290, 4563, 4626, 5070, 5140, 5148, 5577, 5654, 5940, 6084, 6435, 6682, 6939, 7020, 7436, 7605, 7710, 7722, 8481, 8580, 9126, 9252, 9295, 10023, 10140, 11154, 11308, 11565, 12870, 13364, 13878, 14135, 15210, 15420, 15444, 16705, 16731, 16962, 18252, 18590, 19305, 20046, 22308, 22815, 23130, 25443, 25740, 27756, 27885, 28270, 30069, 30420, 33410, 33462, 33924, 34695, 36751, 37180, 38610, 40092, 42405, 43433, 45630, 46260, 50115, 50193, 50886, 55770, 56540, 60138, 66820, 66924, 69390, 73502, 76329, 77220, 83655, 84810, 86866, 90207, 91260, 100230, 100386, 101772, 110253, 111540, 120276, 127215, 130299, 138780, 147004, 150345, 152658, 167310, 169620, 173732, 180414, 183755, 200460, 200772, 217165, 220506, 250965, 254430, 260598, 300690, 305316, 330759, 334620, 360828, 367510, 381645, 390897, 434330, 441012, 451035, 477763, 501930, 508860, 521196, 551265, 601380, 651495, 661518, 735020, 763290, 781794, 868660, 902070, 955526, 992277, 1003860, 1102530, 1172691, 1302990, 1323036, 1433289, 1526580, 1563588, 1653795, 1804140, 1911052, 1954485, 1984554, 2205060, 2345382, 2388815, 2605980, 2866578, 3307590, 3908970, 3969108, 4299867, 4690764, 4777630, 4961385, 5733156, 5863455, 6615180, 7166445, 7817940, 8599734, 9555260, 9922770, 11726910, 12899601, 14332890, 17199468, 19845540, 21499335, 23453820, 25799202, 28665780, 42998670, 51598404, 64498005, 85997340, 128996010, 257992020]

約数ペア:

[(1, 257992020), (2, 128996010), (3, 85997340), (4, 64498005), (5, 51598404), (6, 42998670), (9, 28665780), (10, 25799202), (11, 23453820), (12, 21499335), (13, 19845540), (15, 17199468), (18, 14332890), (20, 12899601), (22, 11726910), (26, 9922770), (27, 9555260), (30, 8599734), (33, 7817940), (36, 7166445), (39, 6615180), (44, 5863455), (45, 5733156), (52, 4961385), (54, 4777630), (55, 4690764), (60, 4299867), (65, 3969108), (66, 3908970), (78, 3307590), (90, 2866578), (99, 2605980), (108, 2388815), (110, 2345382), (117, 2205060), (130, 1984554), (132, 1954485), (135, 1911052), (143, 1804140), (156, 1653795), (165, 1563588), (169, 1526580), (180, 1433289), (195, 1323036), (198, 1302990), (220, 1172691), (234, 1102530), (257, 1003860), (260, 992277), (270, 955526), (286, 902070), (297, 868660), (330, 781794), (338, 763290), (351, 735020), (390, 661518), (396, 651495), (429, 601380), (468, 551265), (495, 521196), (507, 508860), (514, 501930), (540, 477763), (572, 451035), (585, 441012), (594, 434330), (660, 390897), (676, 381645), (702, 367510), (715, 360828), (771, 334620), (780, 330759), (845, 305316), (858, 300690), (990, 260598), (1014, 254430), (1028, 250965), (1170, 220506), (1188, 217165), (1285, 200772), (1287, 200460), (1404, 183755), (1430, 180414), (1485, 173732), (1521, 169620), (1542, 167310), (1690, 152658), (1716, 150345), (1755, 147004), (1859, 138780), (1980, 130299), (2028, 127215), (2145, 120276), (2313, 111540), (2340, 110253), (2535, 101772), (2570, 100386), (2574, 100230), (2827, 91260), (2860, 90207), (2970, 86866), (3042, 84810), (3084, 83655), (3341, 77220), (3380, 76329), (3510, 73502), (3718, 69390), (3855, 66924), (3861, 66820), (4290, 60138), (4563, 56540), (4626, 55770), (5070, 50886), (5140, 50193), (5148, 50115), (5577, 46260), (5654, 45630), (5940, 43433), (6084, 42405), (6435, 40092), (6682, 38610), (6939, 37180), (7020, 36751), (7436, 34695), (7605, 33924), (7710, 33462), (7722, 33410), (8481, 30420), (8580, 30069), (9126, 28270), (9252, 27885), (9295, 27756), (10023, 25740), (10140, 25443), (11154, 23130), (11308, 22815), (11565, 22308), (12870, 20046), (13364, 19305), (13878, 18590), (14135, 18252), (15210, 16962), (15420, 16731), (15444, 16705)]