20160921250

素因数分解:

$2^1\times 5^4\times {\mathrm{1021}}^1\times {\mathrm{15797}}^1$

素因数の和:16840

約数の個数: 40

約数和(自身を含む): 37829037708

約数和(自身を除く): 17668116458

約数列:

[1, 2, 5, 10, 25, 50, 125, 250, 625, 1021, 1250, 2042, 5105, 10210, 15797, 25525, 31594, 51050, 78985, 127625, 157970, 255250, 394925, 638125, 789850, 1276250, 1974625, 3949250, 9873125, 16128737, 19746250, 32257474, 80643685, 161287370, 403218425, 806436850, 2016092125, 4032184250, 10080460625, 20160921250]

約数ペア:

[(1, 20160921250), (2, 10080460625), (5, 4032184250), (10, 2016092125), (25, 806436850), (50, 403218425), (125, 161287370), (250, 80643685), (625, 32257474), (1021, 19746250), (1250, 16128737), (2042, 9873125), (5105, 3949250), (10210, 1974625), (15797, 1276250), (25525, 789850), (31594, 638125), (51050, 394925), (78985, 255250), (127625, 157970)]