399970

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1$

素因数の和:114

約数の個数: 32

約数和(自身を含む): 787968

約数和(自身を除く): 387998

約数列:

[1, 2, 5, 10, 23, 37, 46, 47, 74, 94, 115, 185, 230, 235, 370, 470, 851, 1081, 1702, 1739, 2162, 3478, 4255, 5405, 8510, 8695, 10810, 17390, 39997, 79994, 199985, 399970]

約数ペア:

[(1, 399970), (2, 199985), (5, 79994), (10, 39997), (23, 17390), (37, 10810), (46, 8695), (47, 8510), (74, 5405), (94, 4255), (115, 3478), (185, 2162), (230, 1739), (235, 1702), (370, 1081), (470, 851)]