81890564

素因数分解:

$2^2\times 7^3\times {\mathrm{17}}^1\times {\mathrm{3511}}^1$

素因数の和:3553

約数の個数: 48

約数和(自身を含む): 177004800

約数和(自身を除く): 95114236

約数列:

[1, 2, 4, 7, 14, 17, 28, 34, 49, 68, 98, 119, 196, 238, 343, 476, 686, 833, 1372, 1666, 3332, 3511, 5831, 7022, 11662, 14044, 23324, 24577, 49154, 59687, 98308, 119374, 172039, 238748, 344078, 417809, 688156, 835618, 1204273, 1671236, 2408546, 2924663, 4817092, 5849326, 11698652, 20472641, 40945282, 81890564]

約数ペア:

[(1, 81890564), (2, 40945282), (4, 20472641), (7, 11698652), (14, 5849326), (17, 4817092), (28, 2924663), (34, 2408546), (49, 1671236), (68, 1204273), (98, 835618), (119, 688156), (196, 417809), (238, 344078), (343, 238748), (476, 172039), (686, 119374), (833, 98308), (1372, 59687), (1666, 49154), (3332, 24577), (3511, 23324), (5831, 14044), (7022, 11662)]