256480420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{44683}}^1$

素因数の和:44740

約数の個数: 48

約数和(自身を含む): 630580608

約数和(自身を除く): 374100188

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 41, 70, 82, 140, 164, 205, 287, 410, 574, 820, 1148, 1435, 2870, 5740, 44683, 89366, 178732, 223415, 312781, 446830, 625562, 893660, 1251124, 1563905, 1832003, 3127810, 3664006, 6255620, 7328012, 9160015, 12824021, 18320030, 25648042, 36640060, 51296084, 64120105, 128240210, 256480420]

約数ペア:

[(1, 256480420), (2, 128240210), (4, 64120105), (5, 51296084), (7, 36640060), (10, 25648042), (14, 18320030), (20, 12824021), (28, 9160015), (35, 7328012), (41, 6255620), (70, 3664006), (82, 3127810), (140, 1832003), (164, 1563905), (205, 1251124), (287, 893660), (410, 625562), (574, 446830), (820, 312781), (1148, 223415), (1435, 178732), (2870, 89366), (5740, 44683)]