1820620

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{73}}^1$

素因数の和:154

約数の個数: 48

約数和(自身を含む): 4102560

約数和(自身を除く): 2281940

約数列:

[1, 2, 4, 5, 10, 20, 29, 43, 58, 73, 86, 116, 145, 146, 172, 215, 290, 292, 365, 430, 580, 730, 860, 1247, 1460, 2117, 2494, 3139, 4234, 4988, 6235, 6278, 8468, 10585, 12470, 12556, 15695, 21170, 24940, 31390, 42340, 62780, 91031, 182062, 364124, 455155, 910310, 1820620]

約数ペア:

[(1, 1820620), (2, 910310), (4, 455155), (5, 364124), (10, 182062), (20, 91031), (29, 62780), (43, 42340), (58, 31390), (73, 24940), (86, 21170), (116, 15695), (145, 12556), (146, 12470), (172, 10585), (215, 8468), (290, 6278), (292, 6235), (365, 4988), (430, 4234), (580, 3139), (730, 2494), (860, 2117), (1247, 1460)]