321540638

素因数分解:

$2^1\times {\mathrm{61}}^1\times {\mathrm{67}}^1\times {\mathrm{139}}^1\times {\mathrm{283}}^1$

素因数の和:552

約数の個数: 32

約数和(自身を含む): 502884480

約数和(自身を除く): 181343842

約数列:

[1, 2, 61, 67, 122, 134, 139, 278, 283, 566, 4087, 8174, 8479, 9313, 16958, 17263, 18626, 18961, 34526, 37922, 39337, 78674, 568093, 1136186, 1156621, 2313242, 2399557, 2635579, 4799114, 5271158, 160770319, 321540638]

約数ペア:

[(1, 321540638), (2, 160770319), (61, 5271158), (67, 4799114), (122, 2635579), (134, 2399557), (139, 2313242), (278, 1156621), (283, 1136186), (566, 568093), (4087, 78674), (8174, 39337), (8479, 37922), (9313, 34526), (16958, 18961), (17263, 18626)]