42987560

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{821}}^1$

素因数の和:867

約数の個数: 128

約数和(自身を含む): 127837440

約数和(自身を除く): 84849880

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 17, 20, 22, 28, 34, 35, 40, 44, 55, 56, 68, 70, 77, 85, 88, 110, 119, 136, 140, 154, 170, 187, 220, 238, 280, 308, 340, 374, 385, 440, 476, 595, 616, 680, 748, 770, 821, 935, 952, 1190, 1309, 1496, 1540, 1642, 1870, 2380, 2618, 3080, 3284, 3740, 4105, 4760, 5236, 5747, 6545, 6568, 7480, 8210, 9031, 10472, 11494, 13090, 13957, 16420, 18062, 22988, 26180, 27914, 28735, 32840, 36124, 45155, 45976, 52360, 55828, 57470, 63217, 69785, 72248, 90310, 97699, 111656, 114940, 126434, 139570, 153527, 180620, 195398, 229880, 252868, 279140, 307054, 316085, 361240, 390796, 488495, 505736, 558280, 614108, 632170, 767635, 781592, 976990, 1074689, 1228216, 1264340, 1535270, 1953980, 2149378, 2528680, 3070540, 3907960, 4298756, 5373445, 6141080, 8597512, 10746890, 21493780, 42987560]

約数ペア:

[(1, 42987560), (2, 21493780), (4, 10746890), (5, 8597512), (7, 6141080), (8, 5373445), (10, 4298756), (11, 3907960), (14, 3070540), (17, 2528680), (20, 2149378), (22, 1953980), (28, 1535270), (34, 1264340), (35, 1228216), (40, 1074689), (44, 976990), (55, 781592), (56, 767635), (68, 632170), (70, 614108), (77, 558280), (85, 505736), (88, 488495), (110, 390796), (119, 361240), (136, 316085), (140, 307054), (154, 279140), (170, 252868), (187, 229880), (220, 195398), (238, 180620), (280, 153527), (308, 139570), (340, 126434), (374, 114940), (385, 111656), (440, 97699), (476, 90310), (595, 72248), (616, 69785), (680, 63217), (748, 57470), (770, 55828), (821, 52360), (935, 45976), (952, 45155), (1190, 36124), (1309, 32840), (1496, 28735), (1540, 27914), (1642, 26180), (1870, 22988), (2380, 18062), (2618, 16420), (3080, 13957), (3284, 13090), (3740, 11494), (4105, 10472), (4760, 9031), (5236, 8210), (5747, 7480), (6545, 6568)]