818587120

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{14851}}^1$

素因数の和:14930

約数の個数: 80

約数和(自身を含む): 2088428832

約数和(自身を除く): 1269841712

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 53, 65, 80, 104, 106, 130, 208, 212, 260, 265, 424, 520, 530, 689, 848, 1040, 1060, 1378, 2120, 2756, 3445, 4240, 5512, 6890, 11024, 13780, 14851, 27560, 29702, 55120, 59404, 74255, 118808, 148510, 193063, 237616, 297020, 386126, 594040, 772252, 787103, 965315, 1188080, 1544504, 1574206, 1930630, 3089008, 3148412, 3861260, 3935515, 6296824, 7722520, 7871030, 10232339, 12593648, 15445040, 15742060, 20464678, 31484120, 40929356, 51161695, 62968240, 81858712, 102323390, 163717424, 204646780, 409293560, 818587120]

約数ペア:

[(1, 818587120), (2, 409293560), (4, 204646780), (5, 163717424), (8, 102323390), (10, 81858712), (13, 62968240), (16, 51161695), (20, 40929356), (26, 31484120), (40, 20464678), (52, 15742060), (53, 15445040), (65, 12593648), (80, 10232339), (104, 7871030), (106, 7722520), (130, 6296824), (208, 3935515), (212, 3861260), (260, 3148412), (265, 3089008), (424, 1930630), (520, 1574206), (530, 1544504), (689, 1188080), (848, 965315), (1040, 787103), (1060, 772252), (1378, 594040), (2120, 386126), (2756, 297020), (3445, 237616), (4240, 193063), (5512, 148510), (6890, 118808), (11024, 74255), (13780, 59404), (14851, 55120), (27560, 29702)]