12698980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{1487}}^1$

素因数の和:1564

約数の個数: 48

約数和(自身を含む): 30998016

約数和(自身を除く): 18299036

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 61, 70, 122, 140, 244, 305, 427, 610, 854, 1220, 1487, 1708, 2135, 2974, 4270, 5948, 7435, 8540, 10409, 14870, 20818, 29740, 41636, 52045, 90707, 104090, 181414, 208180, 362828, 453535, 634949, 907070, 1269898, 1814140, 2539796, 3174745, 6349490, 12698980]

約数ペア:

[(1, 12698980), (2, 6349490), (4, 3174745), (5, 2539796), (7, 1814140), (10, 1269898), (14, 907070), (20, 634949), (28, 453535), (35, 362828), (61, 208180), (70, 181414), (122, 104090), (140, 90707), (244, 52045), (305, 41636), (427, 29740), (610, 20818), (854, 14870), (1220, 10409), (1487, 8540), (1708, 7435), (2135, 5948), (2974, 4270)]