155385280

素因数分解:

$2^6\times 5^1\times {\mathrm{617}}^1\times {\mathrm{787}}^1$

素因数の和:1421

約数の個数: 56

約数和(自身を含む): 371081808

約数和(自身を除く): 215696528

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 617, 787, 1234, 1574, 2468, 3085, 3148, 3935, 4936, 6170, 6296, 7870, 9872, 12340, 12592, 15740, 19744, 24680, 25184, 31480, 39488, 49360, 50368, 62960, 98720, 125920, 197440, 251840, 485579, 971158, 1942316, 2427895, 3884632, 4855790, 7769264, 9711580, 15538528, 19423160, 31077056, 38846320, 77692640, 155385280]

約数ペア:

[(1, 155385280), (2, 77692640), (4, 38846320), (5, 31077056), (8, 19423160), (10, 15538528), (16, 9711580), (20, 7769264), (32, 4855790), (40, 3884632), (64, 2427895), (80, 1942316), (160, 971158), (320, 485579), (617, 251840), (787, 197440), (1234, 125920), (1574, 98720), (2468, 62960), (3085, 50368), (3148, 49360), (3935, 39488), (4936, 31480), (6170, 25184), (6296, 24680), (7870, 19744), (9872, 15740), (12340, 12592)]