28312700

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{751}}^1$

素因数の和:807

約数の個数: 72

約数和(自身を含む): 68537280

約数和(自身を除く): 40224580

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, 580, 650, 725, 751, 754, 1300, 1450, 1502, 1508, 1885, 2900, 3004, 3755, 3770, 7510, 7540, 9425, 9763, 15020, 18775, 18850, 19526, 21779, 37550, 37700, 39052, 43558, 48815, 75100, 87116, 97630, 108895, 195260, 217790, 244075, 283127, 435580, 488150, 544475, 566254, 976300, 1088950, 1132508, 1415635, 2177900, 2831270, 5662540, 7078175, 14156350, 28312700]

約数ペア:

[(1, 28312700), (2, 14156350), (4, 7078175), (5, 5662540), (10, 2831270), (13, 2177900), (20, 1415635), (25, 1132508), (26, 1088950), (29, 976300), (50, 566254), (52, 544475), (58, 488150), (65, 435580), (100, 283127), (116, 244075), (130, 217790), (145, 195260), (260, 108895), (290, 97630), (325, 87116), (377, 75100), (580, 48815), (650, 43558), (725, 39052), (751, 37700), (754, 37550), (1300, 21779), (1450, 19526), (1502, 18850), (1508, 18775), (1885, 15020), (2900, 9763), (3004, 9425), (3755, 7540), (3770, 7510)]