56641520

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{509}}^1$

素因数の和:642

約数の個数: 80

約数和(自身を含む): 143428320

約数和(自身を除く): 86786800

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 107, 130, 208, 214, 260, 428, 509, 520, 535, 856, 1018, 1040, 1070, 1391, 1712, 2036, 2140, 2545, 2782, 4072, 4280, 5090, 5564, 6617, 6955, 8144, 8560, 10180, 11128, 13234, 13910, 20360, 22256, 26468, 27820, 33085, 40720, 52936, 54463, 55640, 66170, 105872, 108926, 111280, 132340, 217852, 264680, 272315, 435704, 529360, 544630, 708019, 871408, 1089260, 1416038, 2178520, 2832076, 3540095, 4357040, 5664152, 7080190, 11328304, 14160380, 28320760, 56641520]

約数ペア:

[(1, 56641520), (2, 28320760), (4, 14160380), (5, 11328304), (8, 7080190), (10, 5664152), (13, 4357040), (16, 3540095), (20, 2832076), (26, 2178520), (40, 1416038), (52, 1089260), (65, 871408), (80, 708019), (104, 544630), (107, 529360), (130, 435704), (208, 272315), (214, 264680), (260, 217852), (428, 132340), (509, 111280), (520, 108926), (535, 105872), (856, 66170), (1018, 55640), (1040, 54463), (1070, 52936), (1391, 40720), (1712, 33085), (2036, 27820), (2140, 26468), (2545, 22256), (2782, 20360), (4072, 13910), (4280, 13234), (5090, 11128), (5564, 10180), (6617, 8560), (6955, 8144)]