646398145

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{79}}^1\times {\mathrm{2003}}^1$

素因数の和:2149

約数の個数: 32

約数和(自身を含む): 846489600

約数和(自身を除く): 200091455

約数列:

[1, 5, 19, 43, 79, 95, 215, 395, 817, 1501, 2003, 3397, 4085, 7505, 10015, 16985, 38057, 64543, 86129, 158237, 190285, 322715, 430645, 791185, 1636451, 3006503, 6804191, 8182255, 15032515, 34020955, 129279629, 646398145]

約数ペア:

[(1, 646398145), (5, 129279629), (19, 34020955), (43, 15032515), (79, 8182255), (95, 6804191), (215, 3006503), (395, 1636451), (817, 791185), (1501, 430645), (2003, 322715), (3397, 190285), (4085, 158237), (7505, 86129), (10015, 64543), (16985, 38057)]