2195815820

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{509}}^1\times {\mathrm{19609}}^1$

素因数の和:20138

約数の個数: 48

約数和(自身を含む): 5040554400

約数和(自身を除く): 2844738580

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 509, 1018, 2036, 2545, 5090, 5599, 10180, 11198, 19609, 22396, 27995, 39218, 55990, 78436, 98045, 111980, 196090, 215699, 392180, 431398, 862796, 1078495, 2156990, 4313980, 9980981, 19961962, 39923924, 49904905, 99809810, 109790791, 199619620, 219581582, 439163164, 548953955, 1097907910, 2195815820]

約数ペア:

[(1, 2195815820), (2, 1097907910), (4, 548953955), (5, 439163164), (10, 219581582), (11, 199619620), (20, 109790791), (22, 99809810), (44, 49904905), (55, 39923924), (110, 19961962), (220, 9980981), (509, 4313980), (1018, 2156990), (2036, 1078495), (2545, 862796), (5090, 431398), (5599, 392180), (10180, 215699), (11198, 196090), (19609, 111980), (22396, 98045), (27995, 78436), (39218, 55990)]