42051620

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{197}}^1\times {\mathrm{821}}^1$

素因数の和:1040

約数の個数: 48

約数和(自身を含む): 95700528

約数和(自身を除く): 53648908

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 197, 260, 394, 788, 821, 985, 1642, 1970, 2561, 3284, 3940, 4105, 5122, 8210, 10244, 10673, 12805, 16420, 21346, 25610, 42692, 51220, 53365, 106730, 161737, 213460, 323474, 646948, 808685, 1617370, 2102581, 3234740, 4205162, 8410324, 10512905, 21025810, 42051620]

約数ペア:

[(1, 42051620), (2, 21025810), (4, 10512905), (5, 8410324), (10, 4205162), (13, 3234740), (20, 2102581), (26, 1617370), (52, 808685), (65, 646948), (130, 323474), (197, 213460), (260, 161737), (394, 106730), (788, 53365), (821, 51220), (985, 42692), (1642, 25610), (1970, 21346), (2561, 16420), (3284, 12805), (3940, 10673), (4105, 10244), (5122, 8210)]