778832140

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{181}}^1\times {\mathrm{3527}}^1$

素因数の和:3778

約数の個数: 48

約数和(自身を含む): 1672017984

約数和(自身を除く): 893185844

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 181, 244, 305, 362, 610, 724, 905, 1220, 1810, 3527, 3620, 7054, 11041, 14108, 17635, 22082, 35270, 44164, 55205, 70540, 110410, 215147, 220820, 430294, 638387, 860588, 1075735, 1276774, 2151470, 2553548, 3191935, 4302940, 6383870, 12767740, 38941607, 77883214, 155766428, 194708035, 389416070, 778832140]

約数ペア:

[(1, 778832140), (2, 389416070), (4, 194708035), (5, 155766428), (10, 77883214), (20, 38941607), (61, 12767740), (122, 6383870), (181, 4302940), (244, 3191935), (305, 2553548), (362, 2151470), (610, 1276774), (724, 1075735), (905, 860588), (1220, 638387), (1810, 430294), (3527, 220820), (3620, 215147), (7054, 110410), (11041, 70540), (14108, 55205), (17635, 44164), (22082, 35270)]