280642740

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{691}}^1\times {\mathrm{967}}^1$

素因数の和:1677

約数の個数: 96

約数和(自身を含む): 900286464

約数和(自身を除く): 619643724

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, 420, 691, 967, 1382, 1934, 2073, 2764, 2901, 3455, 3868, 4146, 4835, 4837, 5802, 6769, 6910, 8292, 9670, 9674, 10365, 11604, 13538, 13820, 14505, 14511, 19340, 19348, 20307, 20730, 24185, 27076, 29010, 29022, 33845, 40614, 41460, 48370, 58020, 58044, 67690, 72555, 81228, 96740, 101535, 135380, 145110, 203070, 290220, 406140, 668197, 1336394, 2004591, 2672788, 3340985, 4009182, 4677379, 6681970, 8018364, 9354758, 10022955, 13363940, 14032137, 18709516, 20045910, 23386895, 28064274, 40091820, 46773790, 56128548, 70160685, 93547580, 140321370, 280642740]

約数ペア:

[(1, 280642740), (2, 140321370), (3, 93547580), (4, 70160685), (5, 56128548), (6, 46773790), (7, 40091820), (10, 28064274), (12, 23386895), (14, 20045910), (15, 18709516), (20, 14032137), (21, 13363940), (28, 10022955), (30, 9354758), (35, 8018364), (42, 6681970), (60, 4677379), (70, 4009182), (84, 3340985), (105, 2672788), (140, 2004591), (210, 1336394), (420, 668197), (691, 406140), (967, 290220), (1382, 203070), (1934, 145110), (2073, 135380), (2764, 101535), (2901, 96740), (3455, 81228), (3868, 72555), (4146, 67690), (4835, 58044), (4837, 58020), (5802, 48370), (6769, 41460), (6910, 40614), (8292, 33845), (9670, 29022), (9674, 29010), (10365, 27076), (11604, 24185), (13538, 20730), (13820, 20307), (14505, 19348), (14511, 19340)]