220878980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{1061}}^1\times {\mathrm{1487}}^1$

素因数の和:2564

約数の個数: 48

約数和(自身を含む): 530966016

約数和(自身を除く): 310087036

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 1061, 1487, 2122, 2974, 4244, 5305, 5948, 7427, 7435, 10409, 10610, 14854, 14870, 20818, 21220, 29708, 29740, 37135, 41636, 52045, 74270, 104090, 148540, 208180, 1577707, 3155414, 6310828, 7888535, 11043949, 15777070, 22087898, 31554140, 44175796, 55219745, 110439490, 220878980]

約数ペア:

[(1, 220878980), (2, 110439490), (4, 55219745), (5, 44175796), (7, 31554140), (10, 22087898), (14, 15777070), (20, 11043949), (28, 7888535), (35, 6310828), (70, 3155414), (140, 1577707), (1061, 208180), (1487, 148540), (2122, 104090), (2974, 74270), (4244, 52045), (5305, 41636), (5948, 37135), (7427, 29740), (7435, 29708), (10409, 21220), (10610, 20818), (14854, 14870)]