318998680

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{257}}^1$

素因数の和:330

約数の個数: 256

約数和(自身を含む): 998645760

約数和(自身を除く): 679647080

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 13, 14, 20, 22, 26, 28, 31, 35, 40, 44, 52, 55, 56, 62, 65, 70, 77, 88, 91, 104, 110, 124, 130, 140, 143, 154, 155, 182, 217, 220, 248, 257, 260, 280, 286, 308, 310, 341, 364, 385, 403, 434, 440, 455, 514, 520, 572, 616, 620, 682, 715, 728, 770, 806, 868, 910, 1001, 1028, 1085, 1144, 1240, 1285, 1364, 1430, 1540, 1612, 1705, 1736, 1799, 1820, 2002, 2015, 2056, 2170, 2387, 2570, 2728, 2821, 2827, 2860, 3080, 3224, 3341, 3410, 3598, 3640, 4004, 4030, 4340, 4433, 4774, 5005, 5140, 5642, 5654, 5720, 6682, 6820, 7196, 7967, 8008, 8060, 8680, 8866, 8995, 9548, 10010, 10280, 11284, 11308, 11935, 13364, 13640, 14105, 14135, 14392, 15934, 16120, 16705, 17732, 17990, 19096, 19789, 20020, 22165, 22568, 22616, 23387, 23870, 26728, 28210, 28270, 31031, 31868, 33410, 35464, 35980, 36751, 39578, 39835, 40040, 44330, 46774, 47740, 55769, 56420, 56540, 62062, 63736, 66820, 71960, 73502, 79156, 79670, 87637, 88660, 93548, 95480, 98945, 103571, 111538, 112840, 113080, 116935, 124124, 133640, 147004, 155155, 158312, 159340, 175274, 177320, 183755, 187096, 197890, 207142, 223076, 233870, 248248, 257257, 278845, 294008, 310310, 318680, 350548, 367510, 395780, 414284, 438185, 446152, 467740, 514514, 517855, 557690, 613459, 620620, 701096, 724997, 735020, 791560, 828568, 876370, 935480, 1029028, 1035710, 1115380, 1139281, 1226918, 1241240, 1286285, 1449994, 1470040, 1752740, 2058056, 2071420, 2230760, 2278562, 2453836, 2572570, 2899988, 3067295, 3505480, 3624985, 4142840, 4557124, 4907672, 5145140, 5696405, 5799976, 6134590, 7249970, 7974967, 9114248, 10290280, 11392810, 12269180, 14499940, 15949934, 22785620, 24538360, 28999880, 31899868, 39874835, 45571240, 63799736, 79749670, 159499340, 318998680]

約数ペア:

[(1, 318998680), (2, 159499340), (4, 79749670), (5, 63799736), (7, 45571240), (8, 39874835), (10, 31899868), (11, 28999880), (13, 24538360), (14, 22785620), (20, 15949934), (22, 14499940), (26, 12269180), (28, 11392810), (31, 10290280), (35, 9114248), (40, 7974967), (44, 7249970), (52, 6134590), (55, 5799976), (56, 5696405), (62, 5145140), (65, 4907672), (70, 4557124), (77, 4142840), (88, 3624985), (91, 3505480), (104, 3067295), (110, 2899988), (124, 2572570), (130, 2453836), (140, 2278562), (143, 2230760), (154, 2071420), (155, 2058056), (182, 1752740), (217, 1470040), (220, 1449994), (248, 1286285), (257, 1241240), (260, 1226918), (280, 1139281), (286, 1115380), (308, 1035710), (310, 1029028), (341, 935480), (364, 876370), (385, 828568), (403, 791560), (434, 735020), (440, 724997), (455, 701096), (514, 620620), (520, 613459), (572, 557690), (616, 517855), (620, 514514), (682, 467740), (715, 446152), (728, 438185), (770, 414284), (806, 395780), (868, 367510), (910, 350548), (1001, 318680), (1028, 310310), (1085, 294008), (1144, 278845), (1240, 257257), (1285, 248248), (1364, 233870), (1430, 223076), (1540, 207142), (1612, 197890), (1705, 187096), (1736, 183755), (1799, 177320), (1820, 175274), (2002, 159340), (2015, 158312), (2056, 155155), (2170, 147004), (2387, 133640), (2570, 124124), (2728, 116935), (2821, 113080), (2827, 112840), (2860, 111538), (3080, 103571), (3224, 98945), (3341, 95480), (3410, 93548), (3598, 88660), (3640, 87637), (4004, 79670), (4030, 79156), (4340, 73502), (4433, 71960), (4774, 66820), (5005, 63736), (5140, 62062), (5642, 56540), (5654, 56420), (5720, 55769), (6682, 47740), (6820, 46774), (7196, 44330), (7967, 40040), (8008, 39835), (8060, 39578), (8680, 36751), (8866, 35980), (8995, 35464), (9548, 33410), (10010, 31868), (10280, 31031), (11284, 28270), (11308, 28210), (11935, 26728), (13364, 23870), (13640, 23387), (14105, 22616), (14135, 22568), (14392, 22165), (15934, 20020), (16120, 19789), (16705, 19096), (17732, 17990)]