857845820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{211}}^1\times {\mathrm{823}}^1$

素因数の和:1075

約数の個数: 96

約数和(自身を含む): 2054330880

約数和(自身を除く): 1196485060

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 26, 38, 52, 65, 76, 95, 130, 190, 211, 247, 260, 380, 422, 494, 823, 844, 988, 1055, 1235, 1646, 2110, 2470, 2743, 3292, 4009, 4115, 4220, 4940, 5486, 8018, 8230, 10699, 10972, 13715, 15637, 16036, 16460, 20045, 21398, 27430, 31274, 40090, 42796, 52117, 53495, 54860, 62548, 78185, 80180, 104234, 106990, 156370, 173653, 203281, 208468, 213980, 260585, 312740, 347306, 406562, 521170, 694612, 813124, 868265, 1016405, 1042340, 1736530, 2032810, 2257489, 3299407, 3473060, 4065620, 4514978, 6598814, 9029956, 11287445, 13197628, 16497035, 22574890, 32994070, 42892291, 45149780, 65988140, 85784582, 171569164, 214461455, 428922910, 857845820]

約数ペア:

[(1, 857845820), (2, 428922910), (4, 214461455), (5, 171569164), (10, 85784582), (13, 65988140), (19, 45149780), (20, 42892291), (26, 32994070), (38, 22574890), (52, 16497035), (65, 13197628), (76, 11287445), (95, 9029956), (130, 6598814), (190, 4514978), (211, 4065620), (247, 3473060), (260, 3299407), (380, 2257489), (422, 2032810), (494, 1736530), (823, 1042340), (844, 1016405), (988, 868265), (1055, 813124), (1235, 694612), (1646, 521170), (2110, 406562), (2470, 347306), (2743, 312740), (3292, 260585), (4009, 213980), (4115, 208468), (4220, 203281), (4940, 173653), (5486, 156370), (8018, 106990), (8230, 104234), (10699, 80180), (10972, 78185), (13715, 62548), (15637, 54860), (16036, 53495), (16460, 52117), (20045, 42796), (21398, 40090), (27430, 31274)]