639312304

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{48907}}^1$

素因数の和:48977

約数の個数: 40

約数和(自身を含む): 1334210240

約数和(自身を除く): 694897936

約数列:

[1, 2, 4, 8, 16, 19, 38, 43, 76, 86, 152, 172, 304, 344, 688, 817, 1634, 3268, 6536, 13072, 48907, 97814, 195628, 391256, 782512, 929233, 1858466, 2103001, 3716932, 4206002, 7433864, 8412004, 14867728, 16824008, 33648016, 39957019, 79914038, 159828076, 319656152, 639312304]

約数ペア:

[(1, 639312304), (2, 319656152), (4, 159828076), (8, 79914038), (16, 39957019), (19, 33648016), (38, 16824008), (43, 14867728), (76, 8412004), (86, 7433864), (152, 4206002), (172, 3716932), (304, 2103001), (344, 1858466), (688, 929233), (817, 782512), (1634, 391256), (3268, 195628), (6536, 97814), (13072, 48907)]