401023310

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{73}}^1\times {\mathrm{997}}^1$

素因数の和:1125

約数の個数: 64

約数和(自身を含む): 797601600

約数和(自身を除く): 396578290

約数列:

[1, 2, 5, 10, 19, 29, 38, 58, 73, 95, 145, 146, 190, 290, 365, 551, 730, 997, 1102, 1387, 1994, 2117, 2755, 2774, 4234, 4985, 5510, 6935, 9970, 10585, 13870, 18943, 21170, 28913, 37886, 40223, 57826, 72781, 80446, 94715, 144565, 145562, 189430, 201115, 289130, 363905, 402230, 549347, 727810, 1098694, 1382839, 2110649, 2746735, 2765678, 4221298, 5493470, 6914195, 10553245, 13828390, 21106490, 40102331, 80204662, 200511655, 401023310]

約数ペア:

[(1, 401023310), (2, 200511655), (5, 80204662), (10, 40102331), (19, 21106490), (29, 13828390), (38, 10553245), (58, 6914195), (73, 5493470), (95, 4221298), (145, 2765678), (146, 2746735), (190, 2110649), (290, 1382839), (365, 1098694), (551, 727810), (730, 549347), (997, 402230), (1102, 363905), (1387, 289130), (1994, 201115), (2117, 189430), (2755, 145562), (2774, 144565), (4234, 94715), (4985, 80446), (5510, 72781), (6935, 57826), (9970, 40223), (10585, 37886), (13870, 28913), (18943, 21170)]