61681720

素因数分解:

$2^3\times 5^1\times {\mathrm{1542043}}^1$

素因数の和:1542054

約数の個数: 16

約数和(自身を含む): 138783960

約数和(自身を除く): 77102240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1542043, 3084086, 6168172, 7710215, 12336344, 15420430, 30840860, 61681720]

約数ペア:

[(1, 61681720), (2, 30840860), (4, 15420430), (5, 12336344), (8, 7710215), (10, 6168172), (20, 3084086), (40, 1542043)]