638790

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{107}}^1\times {\mathrm{199}}^1$

素因数の和:316

約数の個数: 32

約数和(自身を含む): 1555200

約数和(自身を除く): 916410

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 107, 199, 214, 321, 398, 535, 597, 642, 995, 1070, 1194, 1605, 1990, 2985, 3210, 5970, 21293, 42586, 63879, 106465, 127758, 212930, 319395, 638790]

約数ペア:

[(1, 638790), (2, 319395), (3, 212930), (5, 127758), (6, 106465), (10, 63879), (15, 42586), (30, 21293), (107, 5970), (199, 3210), (214, 2985), (321, 1990), (398, 1605), (535, 1194), (597, 1070), (642, 995)]