128313805

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{331}}^1$

素因数の和:469

約数の個数: 32

約数和(自身を含む): 165989376

約数和(自身を除く): 37675571

約数列:

[1, 5, 31, 41, 61, 155, 205, 305, 331, 1271, 1655, 1891, 2501, 6355, 9455, 10261, 12505, 13571, 20191, 51305, 67855, 77531, 100955, 387655, 420701, 625921, 827831, 2103505, 3129605, 4139155, 25662761, 128313805]

約数ペア:

[(1, 128313805), (5, 25662761), (31, 4139155), (41, 3129605), (61, 2103505), (155, 827831), (205, 625921), (305, 420701), (331, 387655), (1271, 100955), (1655, 77531), (1891, 67855), (2501, 51305), (6355, 20191), (9455, 13571), (10261, 12505)]