281431260

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{929}}^1$

素因数の和:978

約数の個数: 240

約数和(自身を含む): 1020872160

約数和(自身を除く): 739440900

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 17, 18, 20, 22, 27, 30, 33, 34, 36, 44, 45, 51, 54, 55, 60, 66, 68, 81, 85, 90, 99, 102, 108, 110, 132, 135, 153, 162, 165, 170, 180, 187, 198, 204, 220, 255, 270, 297, 306, 324, 330, 340, 374, 396, 405, 459, 495, 510, 540, 561, 594, 612, 660, 748, 765, 810, 891, 918, 929, 935, 990, 1020, 1122, 1188, 1377, 1485, 1530, 1620, 1683, 1782, 1836, 1858, 1870, 1980, 2244, 2295, 2754, 2787, 2805, 2970, 3060, 3366, 3564, 3716, 3740, 4455, 4590, 4645, 5049, 5508, 5574, 5610, 5940, 6732, 6885, 8361, 8415, 8910, 9180, 9290, 10098, 10219, 11148, 11220, 13770, 13935, 15147, 15793, 16722, 16830, 17820, 18580, 20196, 20438, 25083, 25245, 27540, 27870, 30294, 30657, 31586, 33444, 33660, 40876, 41805, 47379, 50166, 50490, 51095, 55740, 60588, 61314, 63172, 75249, 75735, 78965, 83610, 91971, 94758, 100332, 100980, 102190, 122628, 125415, 142137, 150498, 151470, 153285, 157930, 167220, 173723, 183942, 189516, 204380, 236895, 250830, 275913, 284274, 300996, 302940, 306570, 315860, 347446, 367884, 376245, 426411, 459855, 473790, 501660, 521169, 551826, 568548, 613140, 694892, 710685, 752490, 827739, 852822, 868615, 919710, 947580, 1042338, 1103652, 1279233, 1379565, 1421370, 1504980, 1563507, 1655478, 1705644, 1737230, 1839420, 2084676, 2132055, 2558466, 2605845, 2759130, 2842740, 3127014, 3310956, 3474460, 4138695, 4264110, 4690521, 5116932, 5211690, 5518260, 6254028, 6396165, 7817535, 8277390, 8528220, 9381042, 10423380, 12792330, 14071563, 15635070, 16554780, 18762084, 23452605, 25584660, 28143126, 31270140, 46905210, 56286252, 70357815, 93810420, 140715630, 281431260]

約数ペア:

[(1, 281431260), (2, 140715630), (3, 93810420), (4, 70357815), (5, 56286252), (6, 46905210), (9, 31270140), (10, 28143126), (11, 25584660), (12, 23452605), (15, 18762084), (17, 16554780), (18, 15635070), (20, 14071563), (22, 12792330), (27, 10423380), (30, 9381042), (33, 8528220), (34, 8277390), (36, 7817535), (44, 6396165), (45, 6254028), (51, 5518260), (54, 5211690), (55, 5116932), (60, 4690521), (66, 4264110), (68, 4138695), (81, 3474460), (85, 3310956), (90, 3127014), (99, 2842740), (102, 2759130), (108, 2605845), (110, 2558466), (132, 2132055), (135, 2084676), (153, 1839420), (162, 1737230), (165, 1705644), (170, 1655478), (180, 1563507), (187, 1504980), (198, 1421370), (204, 1379565), (220, 1279233), (255, 1103652), (270, 1042338), (297, 947580), (306, 919710), (324, 868615), (330, 852822), (340, 827739), (374, 752490), (396, 710685), (405, 694892), (459, 613140), (495, 568548), (510, 551826), (540, 521169), (561, 501660), (594, 473790), (612, 459855), (660, 426411), (748, 376245), (765, 367884), (810, 347446), (891, 315860), (918, 306570), (929, 302940), (935, 300996), (990, 284274), (1020, 275913), (1122, 250830), (1188, 236895), (1377, 204380), (1485, 189516), (1530, 183942), (1620, 173723), (1683, 167220), (1782, 157930), (1836, 153285), (1858, 151470), (1870, 150498), (1980, 142137), (2244, 125415), (2295, 122628), (2754, 102190), (2787, 100980), (2805, 100332), (2970, 94758), (3060, 91971), (3366, 83610), (3564, 78965), (3716, 75735), (3740, 75249), (4455, 63172), (4590, 61314), (4645, 60588), (5049, 55740), (5508, 51095), (5574, 50490), (5610, 50166), (5940, 47379), (6732, 41805), (6885, 40876), (8361, 33660), (8415, 33444), (8910, 31586), (9180, 30657), (9290, 30294), (10098, 27870), (10219, 27540), (11148, 25245), (11220, 25083), (13770, 20438), (13935, 20196), (15147, 18580), (15793, 17820), (16722, 16830)]