80390940

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{277}}^1\times {\mathrm{691}}^1$

素因数の和:987

約数の個数: 96

約数和(自身を含む): 258553344

約数和(自身を除く): 178162404

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 277, 420, 554, 691, 831, 1108, 1382, 1385, 1662, 1939, 2073, 2764, 2770, 3324, 3455, 3878, 4146, 4155, 4837, 5540, 5817, 6910, 7756, 8292, 8310, 9674, 9695, 10365, 11634, 13820, 14511, 16620, 19348, 19390, 20730, 23268, 24185, 29022, 29085, 38780, 41460, 48370, 58044, 58170, 72555, 96740, 116340, 145110, 191407, 290220, 382814, 574221, 765628, 957035, 1148442, 1339849, 1914070, 2296884, 2679698, 2871105, 3828140, 4019547, 5359396, 5742210, 6699245, 8039094, 11484420, 13398490, 16078188, 20097735, 26796980, 40195470, 80390940]

約数ペア:

[(1, 80390940), (2, 40195470), (3, 26796980), (4, 20097735), (5, 16078188), (6, 13398490), (7, 11484420), (10, 8039094), (12, 6699245), (14, 5742210), (15, 5359396), (20, 4019547), (21, 3828140), (28, 2871105), (30, 2679698), (35, 2296884), (42, 1914070), (60, 1339849), (70, 1148442), (84, 957035), (105, 765628), (140, 574221), (210, 382814), (277, 290220), (420, 191407), (554, 145110), (691, 116340), (831, 96740), (1108, 72555), (1382, 58170), (1385, 58044), (1662, 48370), (1939, 41460), (2073, 38780), (2764, 29085), (2770, 29022), (3324, 24185), (3455, 23268), (3878, 20730), (4146, 19390), (4155, 19348), (4837, 16620), (5540, 14511), (5817, 13820), (6910, 11634), (7756, 10365), (8292, 9695), (8310, 9674)]