42390860

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{124679}}^1$

素因数の和:124705

約数の個数: 24

約数和(自身を含む): 94258080

約数和(自身を除く): 51867220

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 124679, 249358, 498716, 623395, 1246790, 2119543, 2493580, 4239086, 8478172, 10597715, 21195430, 42390860]

約数ペア:

[(1, 42390860), (2, 21195430), (4, 10597715), (5, 8478172), (10, 4239086), (17, 2493580), (20, 2119543), (34, 1246790), (68, 623395), (85, 498716), (170, 249358), (340, 124679)]