64638100

素因数分解:

$2^2\times 5^2\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{719}}^1$

素因数の和:793

約数の個数: 72

約数和(自身を含む): 149990400

約数和(自身を除く): 85352300

約数列:

[1, 2, 4, 5, 10, 20, 25, 29, 31, 50, 58, 62, 100, 116, 124, 145, 155, 290, 310, 580, 620, 719, 725, 775, 899, 1438, 1450, 1550, 1798, 2876, 2900, 3100, 3595, 3596, 4495, 7190, 8990, 14380, 17975, 17980, 20851, 22289, 22475, 35950, 41702, 44578, 44950, 71900, 83404, 89156, 89900, 104255, 111445, 208510, 222890, 417020, 445780, 521275, 557225, 646381, 1042550, 1114450, 1292762, 2085100, 2228900, 2585524, 3231905, 6463810, 12927620, 16159525, 32319050, 64638100]

約数ペア:

[(1, 64638100), (2, 32319050), (4, 16159525), (5, 12927620), (10, 6463810), (20, 3231905), (25, 2585524), (29, 2228900), (31, 2085100), (50, 1292762), (58, 1114450), (62, 1042550), (100, 646381), (116, 557225), (124, 521275), (145, 445780), (155, 417020), (290, 222890), (310, 208510), (580, 111445), (620, 104255), (719, 89900), (725, 89156), (775, 83404), (899, 71900), (1438, 44950), (1450, 44578), (1550, 41702), (1798, 35950), (2876, 22475), (2900, 22289), (3100, 20851), (3595, 17980), (3596, 17975), (4495, 14380), (7190, 8990)]