402782015

素因数分解:

$5^1\times {\mathrm{29}}^1\times {\mathrm{103}}^1\times {\mathrm{149}}^1\times {\mathrm{181}}^1$

素因数の和:467

約数の個数: 32

約数和(自身を含む): 511056000

約数和(自身を除く): 108273985

約数列:

[1, 5, 29, 103, 145, 149, 181, 515, 745, 905, 2987, 4321, 5249, 14935, 15347, 18643, 21605, 26245, 26969, 76735, 93215, 134845, 445063, 540647, 782101, 2225315, 2703235, 2777807, 3910505, 13889035, 80556403, 402782015]

約数ペア:

[(1, 402782015), (5, 80556403), (29, 13889035), (103, 3910505), (145, 2777807), (149, 2703235), (181, 2225315), (515, 782101), (745, 540647), (905, 445063), (2987, 134845), (4321, 93215), (5249, 76735), (14935, 26969), (15347, 26245), (18643, 21605)]