171640240

素因数分解:

$2^4\times 5^1\times {\mathrm{47}}^1\times {\mathrm{191}}^1\times {\mathrm{239}}^1$

素因数の和:490

約数の個数: 80

約数和(自身を含む): 411402240

約数和(自身を除く): 239762000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 47, 80, 94, 188, 191, 235, 239, 376, 382, 470, 478, 752, 764, 940, 955, 956, 1195, 1528, 1880, 1910, 1912, 2390, 3056, 3760, 3820, 3824, 4780, 7640, 8977, 9560, 11233, 15280, 17954, 19120, 22466, 35908, 44885, 44932, 45649, 56165, 71816, 89770, 89864, 91298, 112330, 143632, 179540, 179728, 182596, 224660, 228245, 359080, 365192, 449320, 456490, 718160, 730384, 898640, 912980, 1825960, 2145503, 3651920, 4291006, 8582012, 10727515, 17164024, 21455030, 34328048, 42910060, 85820120, 171640240]

約数ペア:

[(1, 171640240), (2, 85820120), (4, 42910060), (5, 34328048), (8, 21455030), (10, 17164024), (16, 10727515), (20, 8582012), (40, 4291006), (47, 3651920), (80, 2145503), (94, 1825960), (188, 912980), (191, 898640), (235, 730384), (239, 718160), (376, 456490), (382, 449320), (470, 365192), (478, 359080), (752, 228245), (764, 224660), (940, 182596), (955, 179728), (956, 179540), (1195, 143632), (1528, 112330), (1880, 91298), (1910, 89864), (1912, 89770), (2390, 71816), (3056, 56165), (3760, 45649), (3820, 44932), (3824, 44885), (4780, 35908), (7640, 22466), (8977, 19120), (9560, 17954), (11233, 15280)]