70551640

素因数分解:

$2^3\times 5^1\times {\mathrm{257}}^1\times {\mathrm{6863}}^1$

素因数の和:7131

約数の個数: 32

約数和(自身を含む): 159382080

約数和(自身を除く): 88830440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 257, 514, 1028, 1285, 2056, 2570, 5140, 6863, 10280, 13726, 27452, 34315, 54904, 68630, 137260, 274520, 1763791, 3527582, 7055164, 8818955, 14110328, 17637910, 35275820, 70551640]

約数ペア:

[(1, 70551640), (2, 35275820), (4, 17637910), (5, 14110328), (8, 8818955), (10, 7055164), (20, 3527582), (40, 1763791), (257, 274520), (514, 137260), (1028, 68630), (1285, 54904), (2056, 34315), (2570, 27452), (5140, 13726), (6863, 10280)]