639584

素因数分解:

$2^5\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{79}}^1$

素因数の和:123

約数の個数: 48

約数和(自身を含む): 1451520

約数和(自身を除く): 811936

約数列:

[1, 2, 4, 8, 11, 16, 22, 23, 32, 44, 46, 79, 88, 92, 158, 176, 184, 253, 316, 352, 368, 506, 632, 736, 869, 1012, 1264, 1738, 1817, 2024, 2528, 3476, 3634, 4048, 6952, 7268, 8096, 13904, 14536, 19987, 27808, 29072, 39974, 58144, 79948, 159896, 319792, 639584]

約数ペア:

[(1, 639584), (2, 319792), (4, 159896), (8, 79948), (11, 58144), (16, 39974), (22, 29072), (23, 27808), (32, 19987), (44, 14536), (46, 13904), (79, 8096), (88, 7268), (92, 6952), (158, 4048), (176, 3634), (184, 3476), (253, 2528), (316, 2024), (352, 1817), (368, 1738), (506, 1264), (632, 1012), (736, 869)]