25778440

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{107}}^1\times {\mathrm{317}}^1$

素因数の和:454

約数の個数: 64

約数和(自身を含む): 61819200

約数和(自身を除く): 36040760

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 107, 152, 190, 214, 317, 380, 428, 535, 634, 760, 856, 1070, 1268, 1585, 2033, 2140, 2536, 3170, 4066, 4280, 6023, 6340, 8132, 10165, 12046, 12680, 16264, 20330, 24092, 30115, 33919, 40660, 48184, 60230, 67838, 81320, 120460, 135676, 169595, 240920, 271352, 339190, 644461, 678380, 1288922, 1356760, 2577844, 3222305, 5155688, 6444610, 12889220, 25778440]

約数ペア:

[(1, 25778440), (2, 12889220), (4, 6444610), (5, 5155688), (8, 3222305), (10, 2577844), (19, 1356760), (20, 1288922), (38, 678380), (40, 644461), (76, 339190), (95, 271352), (107, 240920), (152, 169595), (190, 135676), (214, 120460), (317, 81320), (380, 67838), (428, 60230), (535, 48184), (634, 40660), (760, 33919), (856, 30115), (1070, 24092), (1268, 20330), (1585, 16264), (2033, 12680), (2140, 12046), (2536, 10165), (3170, 8132), (4066, 6340), (4280, 6023)]