123460840

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{83}}^1\times {\mathrm{907}}^1$

素因数の和:1042

約数の個数: 64

約数和(自身を含む): 288308160

約数和(自身を除く): 164847320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 83, 164, 166, 205, 328, 332, 410, 415, 664, 820, 830, 907, 1640, 1660, 1814, 3320, 3403, 3628, 4535, 6806, 7256, 9070, 13612, 17015, 18140, 27224, 34030, 36280, 37187, 68060, 74374, 75281, 136120, 148748, 150562, 185935, 297496, 301124, 371870, 376405, 602248, 743740, 752810, 1487480, 1505620, 3011240, 3086521, 6173042, 12346084, 15432605, 24692168, 30865210, 61730420, 123460840]

約数ペア:

[(1, 123460840), (2, 61730420), (4, 30865210), (5, 24692168), (8, 15432605), (10, 12346084), (20, 6173042), (40, 3086521), (41, 3011240), (82, 1505620), (83, 1487480), (164, 752810), (166, 743740), (205, 602248), (328, 376405), (332, 371870), (410, 301124), (415, 297496), (664, 185935), (820, 150562), (830, 148748), (907, 136120), (1640, 75281), (1660, 74374), (1814, 68060), (3320, 37187), (3403, 36280), (3628, 34030), (4535, 27224), (6806, 18140), (7256, 17015), (9070, 13612)]