85820120

素因数分解:

$2^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{191}}^1\times {\mathrm{239}}^1$

素因数の和:488

約数の個数: 64

約数和(自身を含む): 199065600

約数和(自身を除く): 113245480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 47, 94, 188, 191, 235, 239, 376, 382, 470, 478, 764, 940, 955, 956, 1195, 1528, 1880, 1910, 1912, 2390, 3820, 4780, 7640, 8977, 9560, 11233, 17954, 22466, 35908, 44885, 44932, 45649, 56165, 71816, 89770, 89864, 91298, 112330, 179540, 182596, 224660, 228245, 359080, 365192, 449320, 456490, 912980, 1825960, 2145503, 4291006, 8582012, 10727515, 17164024, 21455030, 42910060, 85820120]

約数ペア:

[(1, 85820120), (2, 42910060), (4, 21455030), (5, 17164024), (8, 10727515), (10, 8582012), (20, 4291006), (40, 2145503), (47, 1825960), (94, 912980), (188, 456490), (191, 449320), (235, 365192), (239, 359080), (376, 228245), (382, 224660), (470, 182596), (478, 179540), (764, 112330), (940, 91298), (955, 89864), (956, 89770), (1195, 71816), (1528, 56165), (1880, 45649), (1910, 44932), (1912, 44885), (2390, 35908), (3820, 22466), (4780, 17954), (7640, 11233), (8977, 9560)]