8991060

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{11527}}^1$

素因数の和:11552

約数の個数: 48

約数和(自身を含む): 27113856

約数和(自身を除く): 18122796

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 11527, 23054, 34581, 46108, 57635, 69162, 115270, 138324, 149851, 172905, 230540, 299702, 345810, 449553, 599404, 691620, 749255, 899106, 1498510, 1798212, 2247765, 2997020, 4495530, 8991060]

約数ペア:

[(1, 8991060), (2, 4495530), (3, 2997020), (4, 2247765), (5, 1798212), (6, 1498510), (10, 899106), (12, 749255), (13, 691620), (15, 599404), (20, 449553), (26, 345810), (30, 299702), (39, 230540), (52, 172905), (60, 149851), (65, 138324), (78, 115270), (130, 69162), (156, 57635), (195, 46108), (260, 34581), (390, 23054), (780, 11527)]