129185680

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{4007}}^1$

素因数の和:4064

約数の個数: 80

約数和(自身を含む): 333978624

約数和(自身を除く): 204792944

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 31, 40, 52, 62, 65, 80, 104, 124, 130, 155, 208, 248, 260, 310, 403, 496, 520, 620, 806, 1040, 1240, 1612, 2015, 2480, 3224, 4007, 4030, 6448, 8014, 8060, 16028, 16120, 20035, 32056, 32240, 40070, 52091, 64112, 80140, 104182, 124217, 160280, 208364, 248434, 260455, 320560, 416728, 496868, 520910, 621085, 833456, 993736, 1041820, 1242170, 1614821, 1987472, 2083640, 2484340, 3229642, 4167280, 4968680, 6459284, 8074105, 9937360, 12918568, 16148210, 25837136, 32296420, 64592840, 129185680]

約数ペア:

[(1, 129185680), (2, 64592840), (4, 32296420), (5, 25837136), (8, 16148210), (10, 12918568), (13, 9937360), (16, 8074105), (20, 6459284), (26, 4968680), (31, 4167280), (40, 3229642), (52, 2484340), (62, 2083640), (65, 1987472), (80, 1614821), (104, 1242170), (124, 1041820), (130, 993736), (155, 833456), (208, 621085), (248, 520910), (260, 496868), (310, 416728), (403, 320560), (496, 260455), (520, 248434), (620, 208364), (806, 160280), (1040, 124217), (1240, 104182), (1612, 80140), (2015, 64112), (2480, 52091), (3224, 40070), (4007, 32240), (4030, 32056), (6448, 20035), (8014, 16120), (8060, 16028)]