80686021960

素因数分解:

$2^3\times 5^1\times {\mathrm{349}}^1\times {\mathrm{1279}}^1\times {\mathrm{4519}}^1$

素因数の和:6158

約数の個数: 64

約数和(自身を含む): 182246400000

約数和(自身を除く): 101560378040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 349, 698, 1279, 1396, 1745, 2558, 2792, 3490, 4519, 5116, 6395, 6980, 9038, 10232, 12790, 13960, 18076, 22595, 25580, 36152, 45190, 51160, 90380, 180760, 446371, 892742, 1577131, 1785484, 2231855, 3154262, 3570968, 4463710, 5779801, 6308524, 7885655, 8927420, 11559602, 12617048, 15771310, 17854840, 23119204, 28899005, 31542620, 46238408, 57798010, 63085240, 115596020, 231192040, 2017150549, 4034301098, 8068602196, 10085752745, 16137204392, 20171505490, 40343010980, 80686021960]

約数ペア:

[(1, 80686021960), (2, 40343010980), (4, 20171505490), (5, 16137204392), (8, 10085752745), (10, 8068602196), (20, 4034301098), (40, 2017150549), (349, 231192040), (698, 115596020), (1279, 63085240), (1396, 57798010), (1745, 46238408), (2558, 31542620), (2792, 28899005), (3490, 23119204), (4519, 17854840), (5116, 15771310), (6395, 12617048), (6980, 11559602), (9038, 8927420), (10232, 7885655), (12790, 6308524), (13960, 5779801), (18076, 4463710), (22595, 3570968), (25580, 3154262), (36152, 2231855), (45190, 1785484), (51160, 1577131), (90380, 892742), (180760, 446371)]