17804780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{7481}}^1$

素因数の和:7514

約数の個数: 48

約数和(自身を含む): 45251136

約数和(自身を除く): 27446356

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 20, 28, 34, 35, 68, 70, 85, 119, 140, 170, 238, 340, 476, 595, 1190, 2380, 7481, 14962, 29924, 37405, 52367, 74810, 104734, 127177, 149620, 209468, 254354, 261835, 508708, 523670, 635885, 890239, 1047340, 1271770, 1780478, 2543540, 3560956, 4451195, 8902390, 17804780]

約数ペア:

[(1, 17804780), (2, 8902390), (4, 4451195), (5, 3560956), (7, 2543540), (10, 1780478), (14, 1271770), (17, 1047340), (20, 890239), (28, 635885), (34, 523670), (35, 508708), (68, 261835), (70, 254354), (85, 209468), (119, 149620), (140, 127177), (170, 104734), (238, 74810), (340, 52367), (476, 37405), (595, 29924), (1190, 14962), (2380, 7481)]