128047020

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{643}}^1\times {\mathrm{3319}}^1$

素因数の和:3974

約数の個数: 48

約数和(自身を含む): 359197440

約数和(自身を除く): 231150420

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 643, 1286, 1929, 2572, 3215, 3319, 3858, 6430, 6638, 7716, 9645, 9957, 12860, 13276, 16595, 19290, 19914, 33190, 38580, 39828, 49785, 66380, 99570, 199140, 2134117, 4268234, 6402351, 8536468, 10670585, 12804702, 21341170, 25609404, 32011755, 42682340, 64023510, 128047020]

約数ペア:

[(1, 128047020), (2, 64023510), (3, 42682340), (4, 32011755), (5, 25609404), (6, 21341170), (10, 12804702), (12, 10670585), (15, 8536468), (20, 6402351), (30, 4268234), (60, 2134117), (643, 199140), (1286, 99570), (1929, 66380), (2572, 49785), (3215, 39828), (3319, 38580), (3858, 33190), (6430, 19914), (6638, 19290), (7716, 16595), (9645, 13276), (9957, 12860)]