90666520

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{181}}^1\times {\mathrm{1789}}^1$

素因数の和:1988

約数の個数: 64

約数和(自身を含む): 234561600

約数和(自身を除く): 143895080

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 181, 280, 362, 724, 905, 1267, 1448, 1789, 1810, 2534, 3578, 3620, 5068, 6335, 7156, 7240, 8945, 10136, 12523, 12670, 14312, 17890, 25046, 25340, 35780, 50092, 50680, 62615, 71560, 100184, 125230, 250460, 323809, 500920, 647618, 1295236, 1619045, 2266663, 2590472, 3238090, 4533326, 6476180, 9066652, 11333315, 12952360, 18133304, 22666630, 45333260, 90666520]

約数ペア:

[(1, 90666520), (2, 45333260), (4, 22666630), (5, 18133304), (7, 12952360), (8, 11333315), (10, 9066652), (14, 6476180), (20, 4533326), (28, 3238090), (35, 2590472), (40, 2266663), (56, 1619045), (70, 1295236), (140, 647618), (181, 500920), (280, 323809), (362, 250460), (724, 125230), (905, 100184), (1267, 71560), (1448, 62615), (1789, 50680), (1810, 50092), (2534, 35780), (3578, 25340), (3620, 25046), (5068, 17890), (6335, 14312), (7156, 12670), (7240, 12523), (8945, 10136)]