18878752465

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{929}}^1\times {\mathrm{3049}}^1$

素因数の和:4057

約数の個数: 32

約数和(自身を含む): 23962752000

約数和(自身を除く): 5083999535

約数列:

[1, 5, 31, 43, 155, 215, 929, 1333, 3049, 4645, 6665, 15245, 28799, 39947, 94519, 131107, 143995, 199735, 472595, 655535, 1238357, 2832521, 4064317, 6191785, 14162605, 20321585, 87808151, 121798403, 439040755, 608992015, 3775750493, 18878752465]

約数ペア:

[(1, 18878752465), (5, 3775750493), (31, 608992015), (43, 439040755), (155, 121798403), (215, 87808151), (929, 20321585), (1333, 14162605), (3049, 6191785), (4645, 4064317), (6665, 2832521), (15245, 1238357), (28799, 655535), (39947, 472595), (94519, 199735), (131107, 143995)]