12639620

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{137}}^1\times {\mathrm{659}}^1$

素因数の和:812

約数の個数: 48

約数和(自身を含む): 30602880

約数和(自身を除く): 17963260

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 137, 140, 274, 548, 659, 685, 959, 1318, 1370, 1918, 2636, 2740, 3295, 3836, 4613, 4795, 6590, 9226, 9590, 13180, 18452, 19180, 23065, 46130, 90283, 92260, 180566, 361132, 451415, 631981, 902830, 1263962, 1805660, 2527924, 3159905, 6319810, 12639620]

約数ペア:

[(1, 12639620), (2, 6319810), (4, 3159905), (5, 2527924), (7, 1805660), (10, 1263962), (14, 902830), (20, 631981), (28, 451415), (35, 361132), (70, 180566), (137, 92260), (140, 90283), (274, 46130), (548, 23065), (659, 19180), (685, 18452), (959, 13180), (1318, 9590), (1370, 9226), (1918, 6590), (2636, 4795), (2740, 4613), (3295, 3836)]