81758670

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{617}}^1\times {\mathrm{631}}^1$

素因数の和:1265

約数の個数: 64

約数和(自身を含む): 224971776

約数和(自身を除く): 143213106

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 210, 617, 631, 1234, 1262, 1851, 1893, 3085, 3155, 3702, 3786, 4319, 4417, 6170, 6310, 8638, 8834, 9255, 9465, 12957, 13251, 18510, 18930, 21595, 22085, 25914, 26502, 43190, 44170, 64785, 66255, 129570, 132510, 389327, 778654, 1167981, 1946635, 2335962, 2725289, 3893270, 5450578, 5839905, 8175867, 11679810, 13626445, 16351734, 27252890, 40879335, 81758670]

約数ペア:

[(1, 81758670), (2, 40879335), (3, 27252890), (5, 16351734), (6, 13626445), (7, 11679810), (10, 8175867), (14, 5839905), (15, 5450578), (21, 3893270), (30, 2725289), (35, 2335962), (42, 1946635), (70, 1167981), (105, 778654), (210, 389327), (617, 132510), (631, 129570), (1234, 66255), (1262, 64785), (1851, 44170), (1893, 43190), (3085, 26502), (3155, 25914), (3702, 22085), (3786, 21595), (4319, 18930), (4417, 18510), (6170, 13251), (6310, 12957), (8638, 9465), (8834, 9255)]