71217420

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{69821}}^1$

素因数の和:69850

約数の個数: 48

約数和(自身を含む): 211141728

約数和(自身を除く): 139924308

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 17, 20, 30, 34, 51, 60, 68, 85, 102, 170, 204, 255, 340, 510, 1020, 69821, 139642, 209463, 279284, 349105, 418926, 698210, 837852, 1047315, 1186957, 1396420, 2094630, 2373914, 3560871, 4189260, 4747828, 5934785, 7121742, 11869570, 14243484, 17804355, 23739140, 35608710, 71217420]

約数ペア:

[(1, 71217420), (2, 35608710), (3, 23739140), (4, 17804355), (5, 14243484), (6, 11869570), (10, 7121742), (12, 5934785), (15, 4747828), (17, 4189260), (20, 3560871), (30, 2373914), (34, 2094630), (51, 1396420), (60, 1186957), (68, 1047315), (85, 837852), (102, 698210), (170, 418926), (204, 349105), (255, 279284), (340, 209463), (510, 139642), (1020, 69821)]