639873264

素因数分解:

$2^4\times 3^1\times {\mathrm{37}}^1\times {\mathrm{360289}}^1$

素因数の和:360337

約数の個数: 40

約数和(自身を含む): 1697686480

約数和(自身を除く): 1057813216

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 37, 48, 74, 111, 148, 222, 296, 444, 592, 888, 1776, 360289, 720578, 1080867, 1441156, 2161734, 2882312, 4323468, 5764624, 8646936, 13330693, 17293872, 26661386, 39992079, 53322772, 79984158, 106645544, 159968316, 213291088, 319936632, 639873264]

約数ペア:

[(1, 639873264), (2, 319936632), (3, 213291088), (4, 159968316), (6, 106645544), (8, 79984158), (12, 53322772), (16, 39992079), (24, 26661386), (37, 17293872), (48, 13330693), (74, 8646936), (111, 5764624), (148, 4323468), (222, 2882312), (296, 2161734), (444, 1441156), (592, 1080867), (888, 720578), (1776, 360289)]