20682730520

素因数分解:

$2^3\times 5^1\times {\mathrm{821}}^1\times {\mathrm{629803}}^1$

素因数の和:630635

約数の個数: 32

約数和(自身を含む): 46592899920

約数和(自身を除く): 25910169400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 821, 1642, 3284, 4105, 6568, 8210, 16420, 32840, 629803, 1259606, 2519212, 3149015, 5038424, 6298030, 12596060, 25192120, 517068263, 1034136526, 2068273052, 2585341315, 4136546104, 5170682630, 10341365260, 20682730520]

約数ペア:

[(1, 20682730520), (2, 10341365260), (4, 5170682630), (5, 4136546104), (8, 2585341315), (10, 2068273052), (20, 1034136526), (40, 517068263), (821, 25192120), (1642, 12596060), (3284, 6298030), (4105, 5038424), (6568, 3149015), (8210, 2519212), (16420, 1259606), (32840, 629803)]