19989930

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{613}}^1\times {\mathrm{1087}}^1$

素因数の和:1710

約数の個数: 32

約数和(自身を含む): 48098304

約数和(自身を除く): 28108374

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 613, 1087, 1226, 1839, 2174, 3065, 3261, 3678, 5435, 6130, 6522, 9195, 10870, 16305, 18390, 32610, 666331, 1332662, 1998993, 3331655, 3997986, 6663310, 9994965, 19989930]

約数ペア:

[(1, 19989930), (2, 9994965), (3, 6663310), (5, 3997986), (6, 3331655), (10, 1998993), (15, 1332662), (30, 666331), (613, 32610), (1087, 18390), (1226, 16305), (1839, 10870), (2174, 9195), (3065, 6522), (3261, 6130), (3678, 5435)]