1640882620

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{727}}^1\times {\mathrm{8681}}^1$

素因数の和:9430

約数の個数: 48

約数和(自身を含む): 3716451648

約数和(自身を除く): 2075569028

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 727, 1454, 2908, 3635, 7270, 8681, 9451, 14540, 17362, 18902, 34724, 37804, 43405, 47255, 86810, 94510, 112853, 173620, 189020, 225706, 451412, 564265, 1128530, 2257060, 6311087, 12622174, 25244348, 31555435, 63110870, 82044131, 126221740, 164088262, 328176524, 410220655, 820441310, 1640882620]

約数ペア:

[(1, 1640882620), (2, 820441310), (4, 410220655), (5, 328176524), (10, 164088262), (13, 126221740), (20, 82044131), (26, 63110870), (52, 31555435), (65, 25244348), (130, 12622174), (260, 6311087), (727, 2257060), (1454, 1128530), (2908, 564265), (3635, 451412), (7270, 225706), (8681, 189020), (9451, 173620), (14540, 112853), (17362, 94510), (18902, 86810), (34724, 47255), (37804, 43405)]