28518256

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{167}}^1\times {\mathrm{821}}^1$

素因数の和:1009

約数の個数: 40

約数和(自身を含む): 59933664

約数和(自身を除く): 31415408

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 167, 208, 334, 668, 821, 1336, 1642, 2171, 2672, 3284, 4342, 6568, 8684, 10673, 13136, 17368, 21346, 34736, 42692, 85384, 137107, 170768, 274214, 548428, 1096856, 1782391, 2193712, 3564782, 7129564, 14259128, 28518256]

約数ペア:

[(1, 28518256), (2, 14259128), (4, 7129564), (8, 3564782), (13, 2193712), (16, 1782391), (26, 1096856), (52, 548428), (104, 274214), (167, 170768), (208, 137107), (334, 85384), (668, 42692), (821, 34736), (1336, 21346), (1642, 17368), (2171, 13136), (2672, 10673), (3284, 8684), (4342, 6568)]