138948880

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{281}}^1\times {\mathrm{883}}^1$

素因数の和:1184

約数の個数: 80

約数和(自身を含む): 370940544

約数和(自身を除く): 231991664

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 281, 560, 562, 883, 1124, 1405, 1766, 1967, 2248, 2810, 3532, 3934, 4415, 4496, 5620, 6181, 7064, 7868, 8830, 9835, 11240, 12362, 14128, 15736, 17660, 19670, 22480, 24724, 30905, 31472, 35320, 39340, 49448, 61810, 70640, 78680, 98896, 123620, 157360, 247240, 248123, 494480, 496246, 992492, 1240615, 1736861, 1984984, 2481230, 3473722, 3969968, 4962460, 6947444, 8684305, 9924920, 13894888, 17368610, 19849840, 27789776, 34737220, 69474440, 138948880]

約数ペア:

[(1, 138948880), (2, 69474440), (4, 34737220), (5, 27789776), (7, 19849840), (8, 17368610), (10, 13894888), (14, 9924920), (16, 8684305), (20, 6947444), (28, 4962460), (35, 3969968), (40, 3473722), (56, 2481230), (70, 1984984), (80, 1736861), (112, 1240615), (140, 992492), (280, 496246), (281, 494480), (560, 248123), (562, 247240), (883, 157360), (1124, 123620), (1405, 98896), (1766, 78680), (1967, 70640), (2248, 61810), (2810, 49448), (3532, 39340), (3934, 35320), (4415, 31472), (4496, 30905), (5620, 24724), (6181, 22480), (7064, 19670), (7868, 17660), (8830, 15736), (9835, 14128), (11240, 12362)]