391653890

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{199}}^2$

素因数の和:471

約数の個数: 48

約数和(自身を含む): 756537408

約数和(自身を除く): 364883518

約数列:

[1, 2, 5, 10, 23, 43, 46, 86, 115, 199, 215, 230, 398, 430, 989, 995, 1978, 1990, 4577, 4945, 8557, 9154, 9890, 17114, 22885, 39601, 42785, 45770, 79202, 85570, 196811, 198005, 393622, 396010, 910823, 984055, 1702843, 1821646, 1968110, 3405686, 4554115, 8514215, 9108230, 17028430, 39165389, 78330778, 195826945, 391653890]

約数ペア:

[(1, 391653890), (2, 195826945), (5, 78330778), (10, 39165389), (23, 17028430), (43, 9108230), (46, 8514215), (86, 4554115), (115, 3405686), (199, 1968110), (215, 1821646), (230, 1702843), (398, 984055), (430, 910823), (989, 396010), (995, 393622), (1978, 198005), (1990, 196811), (4577, 85570), (4945, 79202), (8557, 45770), (9154, 42785), (9890, 39601), (17114, 22885)]