639870876

素因数分解:

$2^2\times 3^2\times {\mathrm{31}}^1\times {\mathrm{239}}^1\times {\mathrm{2399}}^1$

素因数の和:2679

約数の個数: 72

約数和(自身を含む): 1677312000

約数和(自身を除く): 1037441124

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 31, 36, 62, 93, 124, 186, 239, 279, 372, 478, 558, 717, 956, 1116, 1434, 2151, 2399, 2868, 4302, 4798, 7197, 7409, 8604, 9596, 14394, 14818, 21591, 22227, 28788, 29636, 43182, 44454, 66681, 74369, 86364, 88908, 133362, 148738, 223107, 266724, 297476, 446214, 573361, 669321, 892428, 1146722, 1338642, 1720083, 2293444, 2677284, 3440166, 5160249, 6880332, 10320498, 17774191, 20640996, 35548382, 53322573, 71096764, 106645146, 159967719, 213290292, 319935438, 639870876]

約数ペア:

[(1, 639870876), (2, 319935438), (3, 213290292), (4, 159967719), (6, 106645146), (9, 71096764), (12, 53322573), (18, 35548382), (31, 20640996), (36, 17774191), (62, 10320498), (93, 6880332), (124, 5160249), (186, 3440166), (239, 2677284), (279, 2293444), (372, 1720083), (478, 1338642), (558, 1146722), (717, 892428), (956, 669321), (1116, 573361), (1434, 446214), (2151, 297476), (2399, 266724), (2868, 223107), (4302, 148738), (4798, 133362), (7197, 88908), (7409, 86364), (8604, 74369), (9596, 66681), (14394, 44454), (14818, 43182), (21591, 29636), (22227, 28788)]