71243240

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{43441}}^1$

素因数の和:43493

約数の個数: 32

約数和(自身を含む): 164210760

約数和(自身を除く): 92967520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 43441, 86882, 173764, 217205, 347528, 434410, 868820, 1737640, 1781081, 3562162, 7124324, 8905405, 14248648, 17810810, 35621620, 71243240]

約数ペア:

[(1, 71243240), (2, 35621620), (4, 17810810), (5, 14248648), (8, 8905405), (10, 7124324), (20, 3562162), (40, 1781081), (41, 1737640), (82, 868820), (164, 434410), (205, 347528), (328, 217205), (410, 173764), (820, 86882), (1640, 43441)]