131608780

素因数分解:

$2^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{109}}^1\times {\mathrm{827}}^1$

素因数の和:1018

約数の個数: 48

約数和(自身を含む): 283076640

約数和(自身を除く): 151467860

約数列:

[1, 2, 4, 5, 10, 20, 73, 109, 146, 218, 292, 365, 436, 545, 730, 827, 1090, 1460, 1654, 2180, 3308, 4135, 7957, 8270, 15914, 16540, 31828, 39785, 60371, 79570, 90143, 120742, 159140, 180286, 241484, 301855, 360572, 450715, 603710, 901430, 1207420, 1802860, 6580439, 13160878, 26321756, 32902195, 65804390, 131608780]

約数ペア:

[(1, 131608780), (2, 65804390), (4, 32902195), (5, 26321756), (10, 13160878), (20, 6580439), (73, 1802860), (109, 1207420), (146, 901430), (218, 603710), (292, 450715), (365, 360572), (436, 301855), (545, 241484), (730, 180286), (827, 159140), (1090, 120742), (1460, 90143), (1654, 79570), (2180, 60371), (3308, 39785), (4135, 31828), (7957, 16540), (8270, 15914)]