42990975

素因数分解:

$3^2\times 5^2\times {\mathrm{191071}}^1$

素因数の和:191087

約数の個数: 18

約数和(自身を含む): 77002016

約数和(自身を除く): 34011041

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 225, 191071, 573213, 955355, 1719639, 2866065, 4776775, 8598195, 14330325, 42990975]

約数ペア:

[(1, 42990975), (3, 14330325), (5, 8598195), (9, 4776775), (15, 2866065), (25, 1719639), (45, 955355), (75, 573213), (225, 191071)]