80699920

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{2719}}^1$

素因数の和:2792

約数の個数: 80

約数和(自身を含む): 218557440

約数和(自身を除く): 137857520

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 53, 56, 70, 80, 106, 112, 140, 212, 265, 280, 371, 424, 530, 560, 742, 848, 1060, 1484, 1855, 2120, 2719, 2968, 3710, 4240, 5438, 5936, 7420, 10876, 13595, 14840, 19033, 21752, 27190, 29680, 38066, 43504, 54380, 76132, 95165, 108760, 144107, 152264, 190330, 217520, 288214, 304528, 380660, 576428, 720535, 761320, 1008749, 1152856, 1441070, 1522640, 2017498, 2305712, 2882140, 4034996, 5043745, 5764280, 8069992, 10087490, 11528560, 16139984, 20174980, 40349960, 80699920]

約数ペア:

[(1, 80699920), (2, 40349960), (4, 20174980), (5, 16139984), (7, 11528560), (8, 10087490), (10, 8069992), (14, 5764280), (16, 5043745), (20, 4034996), (28, 2882140), (35, 2305712), (40, 2017498), (53, 1522640), (56, 1441070), (70, 1152856), (80, 1008749), (106, 761320), (112, 720535), (140, 576428), (212, 380660), (265, 304528), (280, 288214), (371, 217520), (424, 190330), (530, 152264), (560, 144107), (742, 108760), (848, 95165), (1060, 76132), (1484, 54380), (1855, 43504), (2120, 38066), (2719, 29680), (2968, 27190), (3710, 21752), (4240, 19033), (5438, 14840), (5936, 13595), (7420, 10876)]