28397525

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{131}}^1$

素因数の和:206

約数の個数: 48

約数和(自身を含む): 41247360

約数和(自身を除く): 12849835

約数列:

[1, 5, 13, 23, 25, 29, 65, 115, 131, 145, 299, 325, 377, 575, 655, 667, 725, 1495, 1703, 1885, 3013, 3275, 3335, 3799, 7475, 8515, 8671, 9425, 15065, 16675, 18995, 39169, 42575, 43355, 49387, 75325, 87377, 94975, 195845, 216775, 246935, 436885, 979225, 1135901, 1234675, 2184425, 5679505, 28397525]

約数ペア:

[(1, 28397525), (5, 5679505), (13, 2184425), (23, 1234675), (25, 1135901), (29, 979225), (65, 436885), (115, 246935), (131, 216775), (145, 195845), (299, 94975), (325, 87377), (377, 75325), (575, 49387), (655, 43355), (667, 42575), (725, 39169), (1495, 18995), (1703, 16675), (1885, 15065), (3013, 9425), (3275, 8671), (3335, 8515), (3799, 7475)]