25784780

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{83}}^1\times {\mathrm{317}}^1$

素因数の和:423

約数の個数: 72

約数和(自身を含む): 63948528

約数和(自身を除く): 38163748

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 83, 98, 140, 166, 196, 245, 317, 332, 415, 490, 581, 634, 830, 980, 1162, 1268, 1585, 1660, 2219, 2324, 2905, 3170, 4067, 4438, 5810, 6340, 8134, 8876, 11095, 11620, 15533, 16268, 20335, 22190, 26311, 31066, 40670, 44380, 52622, 62132, 77665, 81340, 105244, 131555, 155330, 184177, 263110, 310660, 368354, 526220, 736708, 920885, 1289239, 1841770, 2578478, 3683540, 5156956, 6446195, 12892390, 25784780]

約数ペア:

[(1, 25784780), (2, 12892390), (4, 6446195), (5, 5156956), (7, 3683540), (10, 2578478), (14, 1841770), (20, 1289239), (28, 920885), (35, 736708), (49, 526220), (70, 368354), (83, 310660), (98, 263110), (140, 184177), (166, 155330), (196, 131555), (245, 105244), (317, 81340), (332, 77665), (415, 62132), (490, 52622), (581, 44380), (634, 40670), (830, 31066), (980, 26311), (1162, 22190), (1268, 20335), (1585, 16268), (1660, 15533), (2219, 11620), (2324, 11095), (2905, 8876), (3170, 8134), (4067, 6340), (4438, 5810)]