15039920

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{107}}^1\times {\mathrm{251}}^1$

素因数の和:378

約数の個数: 80

約数和(自身を含む): 40497408

約数和(自身を除く): 25457488

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 107, 112, 140, 214, 251, 280, 428, 502, 535, 560, 749, 856, 1004, 1070, 1255, 1498, 1712, 1757, 2008, 2140, 2510, 2996, 3514, 3745, 4016, 4280, 5020, 5992, 7028, 7490, 8560, 8785, 10040, 11984, 14056, 14980, 17570, 20080, 26857, 28112, 29960, 35140, 53714, 59920, 70280, 107428, 134285, 140560, 187999, 214856, 268570, 375998, 429712, 537140, 751996, 939995, 1074280, 1503992, 1879990, 2148560, 3007984, 3759980, 7519960, 15039920]

約数ペア:

[(1, 15039920), (2, 7519960), (4, 3759980), (5, 3007984), (7, 2148560), (8, 1879990), (10, 1503992), (14, 1074280), (16, 939995), (20, 751996), (28, 537140), (35, 429712), (40, 375998), (56, 268570), (70, 214856), (80, 187999), (107, 140560), (112, 134285), (140, 107428), (214, 70280), (251, 59920), (280, 53714), (428, 35140), (502, 29960), (535, 28112), (560, 26857), (749, 20080), (856, 17570), (1004, 14980), (1070, 14056), (1255, 11984), (1498, 10040), (1712, 8785), (1757, 8560), (2008, 7490), (2140, 7028), (2510, 5992), (2996, 5020), (3514, 4280), (3745, 4016)]