2103280

素因数分解:

$2^4\times 5^1\times {\mathrm{61}}^1\times {\mathrm{431}}^1$

素因数の和:505

約数の個数: 40

約数和(自身を含む): 4981824

約数和(自身を除く): 2878544

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 61, 80, 122, 244, 305, 431, 488, 610, 862, 976, 1220, 1724, 2155, 2440, 3448, 4310, 4880, 6896, 8620, 17240, 26291, 34480, 52582, 105164, 131455, 210328, 262910, 420656, 525820, 1051640, 2103280]

約数ペア:

[(1, 2103280), (2, 1051640), (4, 525820), (5, 420656), (8, 262910), (10, 210328), (16, 131455), (20, 105164), (40, 52582), (61, 34480), (80, 26291), (122, 17240), (244, 8620), (305, 6896), (431, 4880), (488, 4310), (610, 3448), (862, 2440), (976, 2155), (1220, 1724)]