639473366

素因数分解:

$2^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{199}}^1\times {\mathrm{2579}}^1$

素因数の和:2876

約数の個数: 32

約数和(自身を含む): 1114560000

約数和(自身を除く): 475086634

約数列:

[1, 2, 7, 14, 89, 178, 199, 398, 623, 1246, 1393, 2579, 2786, 5158, 17711, 18053, 35422, 36106, 123977, 229531, 247954, 459062, 513221, 1026442, 1606717, 3213434, 3592547, 7185094, 45676669, 91353338, 319736683, 639473366]

約数ペア:

[(1, 639473366), (2, 319736683), (7, 91353338), (14, 45676669), (89, 7185094), (178, 3592547), (199, 3213434), (398, 1606717), (623, 1026442), (1246, 513221), (1393, 459062), (2579, 247954), (2786, 229531), (5158, 123977), (17711, 36106), (18053, 35422)]