80718680

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{41183}}^1$

素因数の和:41208

約数の個数: 48

約数和(自身を含む): 211273920

約数和(自身を除く): 130555240

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1960, 41183, 82366, 164732, 205915, 288281, 329464, 411830, 576562, 823660, 1153124, 1441405, 1647320, 2017967, 2306248, 2882810, 4035934, 5765620, 8071868, 10089835, 11531240, 16143736, 20179670, 40359340, 80718680]

約数ペア:

[(1, 80718680), (2, 40359340), (4, 20179670), (5, 16143736), (7, 11531240), (8, 10089835), (10, 8071868), (14, 5765620), (20, 4035934), (28, 2882810), (35, 2306248), (40, 2017967), (49, 1647320), (56, 1441405), (70, 1153124), (98, 823660), (140, 576562), (196, 411830), (245, 329464), (280, 288281), (392, 205915), (490, 164732), (980, 82366), (1960, 41183)]