51691120

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{2161}}^1$

素因数の和:2210

約数の個数: 80

約数和(自身を含む): 135116352

約数和(自身を除く): 83425232

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 23, 26, 40, 46, 52, 65, 80, 92, 104, 115, 130, 184, 208, 230, 260, 299, 368, 460, 520, 598, 920, 1040, 1196, 1495, 1840, 2161, 2392, 2990, 4322, 4784, 5980, 8644, 10805, 11960, 17288, 21610, 23920, 28093, 34576, 43220, 49703, 56186, 86440, 99406, 112372, 140465, 172880, 198812, 224744, 248515, 280930, 397624, 449488, 497030, 561860, 646139, 795248, 994060, 1123720, 1292278, 1988120, 2247440, 2584556, 3230695, 3976240, 5169112, 6461390, 10338224, 12922780, 25845560, 51691120]

約数ペア:

[(1, 51691120), (2, 25845560), (4, 12922780), (5, 10338224), (8, 6461390), (10, 5169112), (13, 3976240), (16, 3230695), (20, 2584556), (23, 2247440), (26, 1988120), (40, 1292278), (46, 1123720), (52, 994060), (65, 795248), (80, 646139), (92, 561860), (104, 497030), (115, 449488), (130, 397624), (184, 280930), (208, 248515), (230, 224744), (260, 198812), (299, 172880), (368, 140465), (460, 112372), (520, 99406), (598, 86440), (920, 56186), (1040, 49703), (1196, 43220), (1495, 34576), (1840, 28093), (2161, 23920), (2392, 21610), (2990, 17288), (4322, 11960), (4784, 10805), (5980, 8644)]