398133790

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{211}}^1\times {\mathrm{9931}}^1$

素因数の和:10168

約数の個数: 32

約数和(自身を含む): 758010240

約数和(自身を除く): 359876450

約数列:

[1, 2, 5, 10, 19, 38, 95, 190, 211, 422, 1055, 2110, 4009, 8018, 9931, 19862, 20045, 40090, 49655, 99310, 188689, 377378, 943445, 1886890, 2095441, 4190882, 10477205, 20954410, 39813379, 79626758, 199066895, 398133790]

約数ペア:

[(1, 398133790), (2, 199066895), (5, 79626758), (10, 39813379), (19, 20954410), (38, 10477205), (95, 4190882), (190, 2095441), (211, 1886890), (422, 943445), (1055, 377378), (2110, 188689), (4009, 99310), (8018, 49655), (9931, 40090), (19862, 20045)]