17485720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{197}}^1\times {\mathrm{317}}^1$

素因数の和:532

約数の個数: 64

約数和(自身を含む): 45334080

約数和(自身を除く): 27848360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 197, 280, 317, 394, 634, 788, 985, 1268, 1379, 1576, 1585, 1970, 2219, 2536, 2758, 3170, 3940, 4438, 5516, 6340, 6895, 7880, 8876, 11032, 11095, 12680, 13790, 17752, 22190, 27580, 44380, 55160, 62449, 88760, 124898, 249796, 312245, 437143, 499592, 624490, 874286, 1248980, 1748572, 2185715, 2497960, 3497144, 4371430, 8742860, 17485720]

約数ペア:

[(1, 17485720), (2, 8742860), (4, 4371430), (5, 3497144), (7, 2497960), (8, 2185715), (10, 1748572), (14, 1248980), (20, 874286), (28, 624490), (35, 499592), (40, 437143), (56, 312245), (70, 249796), (140, 124898), (197, 88760), (280, 62449), (317, 55160), (394, 44380), (634, 27580), (788, 22190), (985, 17752), (1268, 13790), (1379, 12680), (1576, 11095), (1585, 11032), (1970, 8876), (2219, 7880), (2536, 6895), (2758, 6340), (3170, 5516), (3940, 4438)]