30639220

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{1549}}^1$

素因数の和:1624

約数の個数: 48

約数和(自身を含む): 68745600

約数和(自身を除く): 38106380

約数列:

[1, 2, 4, 5, 10, 20, 23, 43, 46, 86, 92, 115, 172, 215, 230, 430, 460, 860, 989, 1549, 1978, 3098, 3956, 4945, 6196, 7745, 9890, 15490, 19780, 30980, 35627, 66607, 71254, 133214, 142508, 178135, 266428, 333035, 356270, 666070, 712540, 1332140, 1531961, 3063922, 6127844, 7659805, 15319610, 30639220]

約数ペア:

[(1, 30639220), (2, 15319610), (4, 7659805), (5, 6127844), (10, 3063922), (20, 1531961), (23, 1332140), (43, 712540), (46, 666070), (86, 356270), (92, 333035), (115, 266428), (172, 178135), (215, 142508), (230, 133214), (430, 71254), (460, 66607), (860, 35627), (989, 30980), (1549, 19780), (1978, 15490), (3098, 9890), (3956, 7745), (4945, 6196)]