78767500

素因数分解:

$2^2\times 5^4\times 7^2\times {\mathrm{643}}^1$

素因数の和:681

約数の個数: 90

約数和(自身を含む): 200682636

約数和(自身を除く): 121915136

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 49, 50, 70, 98, 100, 125, 140, 175, 196, 245, 250, 350, 490, 500, 625, 643, 700, 875, 980, 1225, 1250, 1286, 1750, 2450, 2500, 2572, 3215, 3500, 4375, 4501, 4900, 6125, 6430, 8750, 9002, 12250, 12860, 16075, 17500, 18004, 22505, 24500, 30625, 31507, 32150, 45010, 61250, 63014, 64300, 80375, 90020, 112525, 122500, 126028, 157535, 160750, 225050, 315070, 321500, 401875, 450100, 562625, 630140, 787675, 803750, 1125250, 1575350, 1607500, 2250500, 2813125, 3150700, 3938375, 5626250, 7876750, 11252500, 15753500, 19691875, 39383750, 78767500]

約数ペア:

[(1, 78767500), (2, 39383750), (4, 19691875), (5, 15753500), (7, 11252500), (10, 7876750), (14, 5626250), (20, 3938375), (25, 3150700), (28, 2813125), (35, 2250500), (49, 1607500), (50, 1575350), (70, 1125250), (98, 803750), (100, 787675), (125, 630140), (140, 562625), (175, 450100), (196, 401875), (245, 321500), (250, 315070), (350, 225050), (490, 160750), (500, 157535), (625, 126028), (643, 122500), (700, 112525), (875, 90020), (980, 80375), (1225, 64300), (1250, 63014), (1286, 61250), (1750, 45010), (2450, 32150), (2500, 31507), (2572, 30625), (3215, 24500), (3500, 22505), (4375, 18004), (4501, 17500), (4900, 16075), (6125, 12860), (6430, 12250), (8750, 9002)]