81250900

素因数分解:

$2^2\times 5^2\times {\mathrm{67}}^2\times {\mathrm{181}}^1$

素因数の和:329

約数の個数: 54

約数和(自身を含む): 179974158

約数和(自身を除く): 98723258

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 67, 100, 134, 181, 268, 335, 362, 670, 724, 905, 1340, 1675, 1810, 3350, 3620, 4489, 4525, 6700, 8978, 9050, 12127, 17956, 18100, 22445, 24254, 44890, 48508, 60635, 89780, 112225, 121270, 224450, 242540, 303175, 448900, 606350, 812509, 1212700, 1625018, 3250036, 4062545, 8125090, 16250180, 20312725, 40625450, 81250900]

約数ペア:

[(1, 81250900), (2, 40625450), (4, 20312725), (5, 16250180), (10, 8125090), (20, 4062545), (25, 3250036), (50, 1625018), (67, 1212700), (100, 812509), (134, 606350), (181, 448900), (268, 303175), (335, 242540), (362, 224450), (670, 121270), (724, 112225), (905, 89780), (1340, 60635), (1675, 48508), (1810, 44890), (3350, 24254), (3620, 22445), (4489, 18100), (4525, 17956), (6700, 12127), (8978, 9050)]