71090980

素因数分解:

$2^2\times 5^1\times {\mathrm{1723}}^1\times {\mathrm{2063}}^1$

素因数の和:3795

約数の個数: 24

約数和(自身を含む): 149450112

約数和(自身を除く): 78359132

約数列:

[1, 2, 4, 5, 10, 20, 1723, 2063, 3446, 4126, 6892, 8252, 8615, 10315, 17230, 20630, 34460, 41260, 3554549, 7109098, 14218196, 17772745, 35545490, 71090980]

約数ペア:

[(1, 71090980), (2, 35545490), (4, 17772745), (5, 14218196), (10, 7109098), (20, 3554549), (1723, 41260), (2063, 34460), (3446, 20630), (4126, 17230), (6892, 10315), (8252, 8615)]