28503280

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{27407}}^1$

素因数の和:27433

約数の個数: 40

約数和(自身を含む): 71370432

約数和(自身を除く): 42867152

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 27407, 54814, 109628, 137035, 219256, 274070, 356291, 438512, 548140, 712582, 1096280, 1425164, 1781455, 2192560, 2850328, 3562910, 5700656, 7125820, 14251640, 28503280]

約数ペア:

[(1, 28503280), (2, 14251640), (4, 7125820), (5, 5700656), (8, 3562910), (10, 2850328), (13, 2192560), (16, 1781455), (20, 1425164), (26, 1096280), (40, 712582), (52, 548140), (65, 438512), (80, 356291), (104, 274070), (130, 219256), (208, 137035), (260, 109628), (520, 54814), (1040, 27407)]