90621970

素因数分解:

$2^1\times 5^1\times {\mathrm{157}}^1\times {\mathrm{197}}^1\times {\mathrm{293}}^1$

素因数の和:654

約数の個数: 32

約数和(自身を含む): 165554928

約数和(自身を除く): 74932958

約数列:

[1, 2, 5, 10, 157, 197, 293, 314, 394, 586, 785, 985, 1465, 1570, 1970, 2930, 30929, 46001, 57721, 61858, 92002, 115442, 154645, 230005, 288605, 309290, 460010, 577210, 9062197, 18124394, 45310985, 90621970]

約数ペア:

[(1, 90621970), (2, 45310985), (5, 18124394), (10, 9062197), (157, 577210), (197, 460010), (293, 309290), (314, 288605), (394, 230005), (586, 154645), (785, 115442), (985, 92002), (1465, 61858), (1570, 57721), (1970, 46001), (2930, 30929)]