20620920

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{239}}^1\times {\mathrm{719}}^1$

素因数の和:972

約数の個数: 64

約数和(自身を含む): 62208000

約数和(自身を除く): 41587080

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 239, 478, 717, 719, 956, 1195, 1434, 1438, 1912, 2157, 2390, 2868, 2876, 3585, 3595, 4314, 4780, 5736, 5752, 7170, 7190, 8628, 9560, 10785, 14340, 14380, 17256, 21570, 28680, 28760, 43140, 86280, 171841, 343682, 515523, 687364, 859205, 1031046, 1374728, 1718410, 2062092, 2577615, 3436820, 4124184, 5155230, 6873640, 10310460, 20620920]

約数ペア:

[(1, 20620920), (2, 10310460), (3, 6873640), (4, 5155230), (5, 4124184), (6, 3436820), (8, 2577615), (10, 2062092), (12, 1718410), (15, 1374728), (20, 1031046), (24, 859205), (30, 687364), (40, 515523), (60, 343682), (120, 171841), (239, 86280), (478, 43140), (717, 28760), (719, 28680), (956, 21570), (1195, 17256), (1434, 14380), (1438, 14340), (1912, 10785), (2157, 9560), (2390, 8628), (2868, 7190), (2876, 7170), (3585, 5752), (3595, 5736), (4314, 4780)]