28428790

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{379}}^1\times {\mathrm{577}}^1$

素因数の和:976

約数の個数: 32

約数和(自身を含む): 55349280

約数和(自身を除く): 26920490

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 379, 577, 758, 1154, 1895, 2885, 3790, 4927, 5770, 7501, 9854, 15002, 24635, 37505, 49270, 75010, 218683, 437366, 1093415, 2186830, 2842879, 5685758, 14214395, 28428790]

約数ペア:

[(1, 28428790), (2, 14214395), (5, 5685758), (10, 2842879), (13, 2186830), (26, 1093415), (65, 437366), (130, 218683), (379, 75010), (577, 49270), (758, 37505), (1154, 24635), (1895, 15002), (2885, 9854), (3790, 7501), (4927, 5770)]