318913840

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{211}}^1\times {\mathrm{2699}}^1$

素因数の和:2930

約数の個数: 80

約数和(自身を含む): 851731200

約数和(自身を除く): 532817360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 211, 280, 422, 560, 844, 1055, 1477, 1688, 2110, 2699, 2954, 3376, 4220, 5398, 5908, 7385, 8440, 10796, 11816, 13495, 14770, 16880, 18893, 21592, 23632, 26990, 29540, 37786, 43184, 53980, 59080, 75572, 94465, 107960, 118160, 151144, 188930, 215920, 302288, 377860, 569489, 755720, 1138978, 1511440, 2277956, 2847445, 3986423, 4555912, 5694890, 7972846, 9111824, 11389780, 15945692, 19932115, 22779560, 31891384, 39864230, 45559120, 63782768, 79728460, 159456920, 318913840]

約数ペア:

[(1, 318913840), (2, 159456920), (4, 79728460), (5, 63782768), (7, 45559120), (8, 39864230), (10, 31891384), (14, 22779560), (16, 19932115), (20, 15945692), (28, 11389780), (35, 9111824), (40, 7972846), (56, 5694890), (70, 4555912), (80, 3986423), (112, 2847445), (140, 2277956), (211, 1511440), (280, 1138978), (422, 755720), (560, 569489), (844, 377860), (1055, 302288), (1477, 215920), (1688, 188930), (2110, 151144), (2699, 118160), (2954, 107960), (3376, 94465), (4220, 75572), (5398, 59080), (5908, 53980), (7385, 43184), (8440, 37786), (10796, 29540), (11816, 26990), (13495, 23632), (14770, 21592), (16880, 18893)]