21292080

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{1123}}^1$

素因数の和:1218

約数の個数: 80

約数和(自身を含む): 66900480

約数和(自身を除く): 45608400

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 79, 80, 120, 158, 237, 240, 316, 395, 474, 632, 790, 948, 1123, 1185, 1264, 1580, 1896, 2246, 2370, 3160, 3369, 3792, 4492, 4740, 5615, 6320, 6738, 8984, 9480, 11230, 13476, 16845, 17968, 18960, 22460, 26952, 33690, 44920, 53904, 67380, 88717, 89840, 134760, 177434, 266151, 269520, 354868, 443585, 532302, 709736, 887170, 1064604, 1330755, 1419472, 1774340, 2129208, 2661510, 3548680, 4258416, 5323020, 7097360, 10646040, 21292080]

約数ペア:

[(1, 21292080), (2, 10646040), (3, 7097360), (4, 5323020), (5, 4258416), (6, 3548680), (8, 2661510), (10, 2129208), (12, 1774340), (15, 1419472), (16, 1330755), (20, 1064604), (24, 887170), (30, 709736), (40, 532302), (48, 443585), (60, 354868), (79, 269520), (80, 266151), (120, 177434), (158, 134760), (237, 89840), (240, 88717), (316, 67380), (395, 53904), (474, 44920), (632, 33690), (790, 26952), (948, 22460), (1123, 18960), (1185, 17968), (1264, 16845), (1580, 13476), (1896, 11230), (2246, 9480), (2370, 8984), (3160, 6738), (3369, 6320), (3792, 5615), (4492, 4740)]