390542495

素因数分解:

$5^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{51421}}^1$

素因数の和:51471

約数の個数: 24

約数和(自身を含む): 562762368

約数和(自身を除く): 172219873

約数列:

[1, 5, 7, 31, 35, 49, 155, 217, 245, 1085, 1519, 7595, 51421, 257105, 359947, 1594051, 1799735, 2519629, 7970255, 11158357, 12598145, 55791785, 78108499, 390542495]

約数ペア:

[(1, 390542495), (5, 78108499), (7, 55791785), (31, 12598145), (35, 11158357), (49, 7970255), (155, 2519629), (217, 1799735), (245, 1594051), (1085, 359947), (1519, 257105), (7595, 51421)]