398642015

素因数分解:

$5^1\times {\mathrm{47}}^1\times {\mathrm{61}}^1\times {\mathrm{27809}}^1$

素因数の和:27922

約数の個数: 16

約数和(自身を含む): 496575360

約数和(自身を除く): 97933345

約数列:

[1, 5, 47, 61, 235, 305, 2867, 14335, 27809, 139045, 1307023, 1696349, 6535115, 8481745, 79728403, 398642015]

約数ペア:

[(1, 398642015), (5, 79728403), (47, 8481745), (61, 6535115), (235, 1696349), (305, 1307023), (2867, 139045), (14335, 27809)]