88858640

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{1987}}^1$

素因数の和:2056

約数の個数: 80

約数和(自身を含む): 227777088

約数和(自身を除く): 138918448

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 43, 52, 65, 80, 86, 104, 130, 172, 208, 215, 260, 344, 430, 520, 559, 688, 860, 1040, 1118, 1720, 1987, 2236, 2795, 3440, 3974, 4472, 5590, 7948, 8944, 9935, 11180, 15896, 19870, 22360, 25831, 31792, 39740, 44720, 51662, 79480, 85441, 103324, 129155, 158960, 170882, 206648, 258310, 341764, 413296, 427205, 516620, 683528, 854410, 1033240, 1110733, 1367056, 1708820, 2066480, 2221466, 3417640, 4442932, 5553665, 6835280, 8885864, 11107330, 17771728, 22214660, 44429320, 88858640]

約数ペア:

[(1, 88858640), (2, 44429320), (4, 22214660), (5, 17771728), (8, 11107330), (10, 8885864), (13, 6835280), (16, 5553665), (20, 4442932), (26, 3417640), (40, 2221466), (43, 2066480), (52, 1708820), (65, 1367056), (80, 1110733), (86, 1033240), (104, 854410), (130, 683528), (172, 516620), (208, 427205), (215, 413296), (260, 341764), (344, 258310), (430, 206648), (520, 170882), (559, 158960), (688, 129155), (860, 103324), (1040, 85441), (1118, 79480), (1720, 51662), (1987, 44720), (2236, 39740), (2795, 31792), (3440, 25831), (3974, 22360), (4472, 19870), (5590, 15896), (7948, 11180), (8944, 9935)]