28528025

素因数分解:

$5^2\times {\mathrm{19}}^2\times {\mathrm{29}}^1\times {\mathrm{109}}^1$

素因数の和:186

約数の個数: 36

約数和(自身を含む): 38976300

約数和(自身を除く): 10448275

約数列:

[1, 5, 19, 25, 29, 95, 109, 145, 361, 475, 545, 551, 725, 1805, 2071, 2725, 2755, 3161, 9025, 10355, 10469, 13775, 15805, 39349, 51775, 52345, 60059, 79025, 196745, 261725, 300295, 983725, 1141121, 1501475, 5705605, 28528025]

約数ペア:

[(1, 28528025), (5, 5705605), (19, 1501475), (25, 1141121), (29, 983725), (95, 300295), (109, 261725), (145, 196745), (361, 79025), (475, 60059), (545, 52345), (551, 51775), (725, 39349), (1805, 15805), (2071, 13775), (2725, 10469), (2755, 10355), (3161, 9025)]