21752900

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{577}}^1$

素因数の和:633

約数の個数: 72

約数和(自身を含む): 52678920

約数和(自身を除く): 30926020

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 29, 50, 52, 58, 65, 100, 116, 130, 145, 260, 290, 325, 377, 577, 580, 650, 725, 754, 1154, 1300, 1450, 1508, 1885, 2308, 2885, 2900, 3770, 5770, 7501, 7540, 9425, 11540, 14425, 15002, 16733, 18850, 28850, 30004, 33466, 37505, 37700, 57700, 66932, 75010, 83665, 150020, 167330, 187525, 217529, 334660, 375050, 418325, 435058, 750100, 836650, 870116, 1087645, 1673300, 2175290, 4350580, 5438225, 10876450, 21752900]

約数ペア:

[(1, 21752900), (2, 10876450), (4, 5438225), (5, 4350580), (10, 2175290), (13, 1673300), (20, 1087645), (25, 870116), (26, 836650), (29, 750100), (50, 435058), (52, 418325), (58, 375050), (65, 334660), (100, 217529), (116, 187525), (130, 167330), (145, 150020), (260, 83665), (290, 75010), (325, 66932), (377, 57700), (577, 37700), (580, 37505), (650, 33466), (725, 30004), (754, 28850), (1154, 18850), (1300, 16733), (1450, 15002), (1508, 14425), (1885, 11540), (2308, 9425), (2885, 7540), (2900, 7501), (3770, 5770)]