61657840

素因数分解:

$2^4\times 5^1\times {\mathrm{547}}^1\times {\mathrm{1409}}^1$

素因数の和:1969

約数の個数: 40

約数和(自身を含む): 143718480

約数和(自身を除く): 82060640

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 547, 1094, 1409, 2188, 2735, 2818, 4376, 5470, 5636, 7045, 8752, 10940, 11272, 14090, 21880, 22544, 28180, 43760, 56360, 112720, 770723, 1541446, 3082892, 3853615, 6165784, 7707230, 12331568, 15414460, 30828920, 61657840]

約数ペア:

[(1, 61657840), (2, 30828920), (4, 15414460), (5, 12331568), (8, 7707230), (10, 6165784), (16, 3853615), (20, 3082892), (40, 1541446), (80, 770723), (547, 112720), (1094, 56360), (1409, 43760), (2188, 28180), (2735, 22544), (2818, 21880), (4376, 14090), (5470, 11272), (5636, 10940), (7045, 8752)]