142772120

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{209959}}^1$

素因数の和:209987

約数の個数: 32

約数和(自身を含む): 340135200

約数和(自身を除く): 197363080

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 209959, 419918, 839836, 1049795, 1679672, 2099590, 3569303, 4199180, 7138606, 8398360, 14277212, 17846515, 28554424, 35693030, 71386060, 142772120]

約数ペア:

[(1, 142772120), (2, 71386060), (4, 35693030), (5, 28554424), (8, 17846515), (10, 14277212), (17, 8398360), (20, 7138606), (34, 4199180), (40, 3569303), (68, 2099590), (85, 1679672), (136, 1049795), (170, 839836), (340, 419918), (680, 209959)]