90191950

素因数分解:

$2^1\times 5^2\times {\mathrm{83}}^1\times {\mathrm{103}}^1\times {\mathrm{211}}^1$

素因数の和:409

約数の個数: 48

約数和(自身を含む): 172238976

約数和(自身を除く): 82047026

約数列:

[1, 2, 5, 10, 25, 50, 83, 103, 166, 206, 211, 415, 422, 515, 830, 1030, 1055, 2075, 2110, 2575, 4150, 5150, 5275, 8549, 10550, 17098, 17513, 21733, 35026, 42745, 43466, 85490, 87565, 108665, 175130, 213725, 217330, 427450, 437825, 543325, 875650, 1086650, 1803839, 3607678, 9019195, 18038390, 45095975, 90191950]

約数ペア:

[(1, 90191950), (2, 45095975), (5, 18038390), (10, 9019195), (25, 3607678), (50, 1803839), (83, 1086650), (103, 875650), (166, 543325), (206, 437825), (211, 427450), (415, 217330), (422, 213725), (515, 175130), (830, 108665), (1030, 87565), (1055, 85490), (2075, 43466), (2110, 42745), (2575, 35026), (4150, 21733), (5150, 17513), (5275, 17098), (8549, 10550)]