20580613040

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{1041529}}^1$

素因数の和:1041574

約数の個数: 80

約数和(自身を含む): 54242882400

約数和(自身を除く): 33662269360

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 19, 20, 26, 38, 40, 52, 65, 76, 80, 95, 104, 130, 152, 190, 208, 247, 260, 304, 380, 494, 520, 760, 988, 1040, 1235, 1520, 1976, 2470, 3952, 4940, 9880, 19760, 1041529, 2083058, 4166116, 5207645, 8332232, 10415290, 13539877, 16664464, 19789051, 20830580, 27079754, 39578102, 41661160, 54159508, 67699385, 79156204, 83322320, 98945255, 108319016, 135398770, 158312408, 197890510, 216638032, 257257663, 270797540, 316624816, 395781020, 514515326, 541595080, 791562040, 1029030652, 1083190160, 1286288315, 1583124080, 2058061304, 2572576630, 4116122608, 5145153260, 10290306520, 20580613040]

約数ペア:

[(1, 20580613040), (2, 10290306520), (4, 5145153260), (5, 4116122608), (8, 2572576630), (10, 2058061304), (13, 1583124080), (16, 1286288315), (19, 1083190160), (20, 1029030652), (26, 791562040), (38, 541595080), (40, 514515326), (52, 395781020), (65, 316624816), (76, 270797540), (80, 257257663), (95, 216638032), (104, 197890510), (130, 158312408), (152, 135398770), (190, 108319016), (208, 98945255), (247, 83322320), (260, 79156204), (304, 67699385), (380, 54159508), (494, 41661160), (520, 39578102), (760, 27079754), (988, 20830580), (1040, 19789051), (1235, 16664464), (1520, 13539877), (1976, 10415290), (2470, 8332232), (3952, 5207645), (4940, 4166116), (9880, 2083058), (19760, 1041529)]