1620454940

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{201049}}^1$

素因数の和:201102

約数の個数: 48

約数和(自身を含む): 3782956800

約数和(自身を除く): 2162501860

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 31, 52, 62, 65, 124, 130, 155, 260, 310, 403, 620, 806, 1612, 2015, 4030, 8060, 201049, 402098, 804196, 1005245, 2010490, 2613637, 4020980, 5227274, 6232519, 10454548, 12465038, 13068185, 24930076, 26136370, 31162595, 52272740, 62325190, 81022747, 124650380, 162045494, 324090988, 405113735, 810227470, 1620454940]

約数ペア:

[(1, 1620454940), (2, 810227470), (4, 405113735), (5, 324090988), (10, 162045494), (13, 124650380), (20, 81022747), (26, 62325190), (31, 52272740), (52, 31162595), (62, 26136370), (65, 24930076), (124, 13068185), (130, 12465038), (155, 10454548), (260, 6232519), (310, 5227274), (403, 4020980), (620, 2613637), (806, 2010490), (1612, 1005245), (2015, 804196), (4030, 402098), (8060, 201049)]