639581992

素因数分解:

$2^3\times 7^1\times {\mathrm{2371}}^1\times {\mathrm{4817}}^1$

素因数の和:7201

約数の個数: 32

約数和(自身を含む): 1371395520

約数和(自身を除く): 731813528

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 2371, 4742, 4817, 9484, 9634, 16597, 18968, 19268, 33194, 33719, 38536, 66388, 67438, 132776, 134876, 269752, 11421107, 22842214, 45684428, 79947749, 91368856, 159895498, 319790996, 639581992]

約数ペア:

[(1, 639581992), (2, 319790996), (4, 159895498), (7, 91368856), (8, 79947749), (14, 45684428), (28, 22842214), (56, 11421107), (2371, 269752), (4742, 134876), (4817, 132776), (9484, 67438), (9634, 66388), (16597, 38536), (18968, 33719), (19268, 33194)]