31447181.000000000

素因数分解:

$2^3\times 5^1\times {\mathrm{829}}^1\times {\mathrm{3989}}^1$

素因数の和:4829

約数の個数: 32

約数和(自身を含む): 298053000

約数和(自身を除く): 165777760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 829, 1658, 3316, 3989, 4145, 6632, 7978, 8290, 15956, 16580, 19945, 31912, 33160, 39890, 79780, 159560, 3306881, 6613762, 13227524, 16534405, 26455048, 33068810, 66137620, 132275240]

約数ペア:

[(1, 132275240), (2, 66137620), (4, 33068810), (5, 26455048), (8, 16534405), (10, 13227524), (20, 6613762), (40, 3306881), (829, 159560), (1658, 79780), (3316, 39890), (3989, 33160), (4145, 31912), (6632, 19945), (7978, 16580), (8290, 15956)]