25449320

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{449}}^1$

素因数の和:582

約数の個数: 64

約数和(自身を含む): 62370000

約数和(自身を除く): 36920680

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 109, 130, 218, 260, 436, 449, 520, 545, 872, 898, 1090, 1417, 1796, 2180, 2245, 2834, 3592, 4360, 4490, 5668, 5837, 7085, 8980, 11336, 11674, 14170, 17960, 23348, 28340, 29185, 46696, 48941, 56680, 58370, 97882, 116740, 195764, 233480, 244705, 391528, 489410, 636233, 978820, 1272466, 1957640, 2544932, 3181165, 5089864, 6362330, 12724660, 25449320]

約数ペア:

[(1, 25449320), (2, 12724660), (4, 6362330), (5, 5089864), (8, 3181165), (10, 2544932), (13, 1957640), (20, 1272466), (26, 978820), (40, 636233), (52, 489410), (65, 391528), (104, 244705), (109, 233480), (130, 195764), (218, 116740), (260, 97882), (436, 58370), (449, 56680), (520, 48941), (545, 46696), (872, 29185), (898, 28340), (1090, 23348), (1417, 17960), (1796, 14170), (2180, 11674), (2245, 11336), (2834, 8980), (3592, 7085), (4360, 5837), (4490, 5668)]