71825240

素因数分解:

$2^3\times 5^1\times {\mathrm{397}}^1\times {\mathrm{4523}}^1$

素因数の和:4931

約数の個数: 32

約数和(自身を含む): 162049680

約数和(自身を除く): 90224440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 397, 794, 1588, 1985, 3176, 3970, 4523, 7940, 9046, 15880, 18092, 22615, 36184, 45230, 90460, 180920, 1795631, 3591262, 7182524, 8978155, 14365048, 17956310, 35912620, 71825240]

約数ペア:

[(1, 71825240), (2, 35912620), (4, 17956310), (5, 14365048), (8, 8978155), (10, 7182524), (20, 3591262), (40, 1795631), (397, 180920), (794, 90460), (1588, 45230), (1985, 36184), (3176, 22615), (3970, 18092), (4523, 15880), (7940, 9046)]