257156920

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{5407}}^1$

素因数の和:5488

約数の個数: 64

約数和(自身を含む): 613267200

約数和(自身を除く): 356110280

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 41, 58, 82, 116, 145, 164, 205, 232, 290, 328, 410, 580, 820, 1160, 1189, 1640, 2378, 4756, 5407, 5945, 9512, 10814, 11890, 21628, 23780, 27035, 43256, 47560, 54070, 108140, 156803, 216280, 221687, 313606, 443374, 627212, 784015, 886748, 1108435, 1254424, 1568030, 1773496, 2216870, 3136060, 4433740, 6272120, 6428923, 8867480, 12857846, 25715692, 32144615, 51431384, 64289230, 128578460, 257156920]

約数ペア:

[(1, 257156920), (2, 128578460), (4, 64289230), (5, 51431384), (8, 32144615), (10, 25715692), (20, 12857846), (29, 8867480), (40, 6428923), (41, 6272120), (58, 4433740), (82, 3136060), (116, 2216870), (145, 1773496), (164, 1568030), (205, 1254424), (232, 1108435), (290, 886748), (328, 784015), (410, 627212), (580, 443374), (820, 313606), (1160, 221687), (1189, 216280), (1640, 156803), (2378, 108140), (4756, 54070), (5407, 47560), (5945, 43256), (9512, 27035), (10814, 23780), (11890, 21628)]