90870190

素因数分解:

$2^1\times 5^1\times {\mathrm{193}}^1\times {\mathrm{197}}^1\times {\mathrm{239}}^1$

素因数の和:636

約数の個数: 32

約数和(自身を含む): 165939840

約数和(自身を除く): 75069650

約数列:

[1, 2, 5, 10, 193, 197, 239, 386, 394, 478, 965, 985, 1195, 1930, 1970, 2390, 38021, 46127, 47083, 76042, 92254, 94166, 190105, 230635, 235415, 380210, 461270, 470830, 9087019, 18174038, 45435095, 90870190]

約数ペア:

[(1, 90870190), (2, 45435095), (5, 18174038), (10, 9087019), (193, 470830), (197, 461270), (239, 380210), (386, 235415), (394, 230635), (478, 190105), (965, 94166), (985, 92254), (1195, 76042), (1930, 47083), (1970, 46127), (2390, 38021)]