855260

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{149}}^1$

素因数の和:206

約数の個数: 48

約数和(自身を含む): 2116800

約数和(自身を除く): 1261540

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 41, 70, 82, 140, 149, 164, 205, 287, 298, 410, 574, 596, 745, 820, 1043, 1148, 1435, 1490, 2086, 2870, 2980, 4172, 5215, 5740, 6109, 10430, 12218, 20860, 24436, 30545, 42763, 61090, 85526, 122180, 171052, 213815, 427630, 855260]

約数ペア:

[(1, 855260), (2, 427630), (4, 213815), (5, 171052), (7, 122180), (10, 85526), (14, 61090), (20, 42763), (28, 30545), (35, 24436), (41, 20860), (70, 12218), (82, 10430), (140, 6109), (149, 5740), (164, 5215), (205, 4172), (287, 2980), (298, 2870), (410, 2086), (574, 1490), (596, 1435), (745, 1148), (820, 1043)]