21680760

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{2287}}^1$

素因数の和:2380

約数の個数: 64

約数和(自身を含む): 65894400

約数和(自身を除く): 44213640

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 79, 120, 158, 237, 316, 395, 474, 632, 790, 948, 1185, 1580, 1896, 2287, 2370, 3160, 4574, 4740, 6861, 9148, 9480, 11435, 13722, 18296, 22870, 27444, 34305, 45740, 54888, 68610, 91480, 137220, 180673, 274440, 361346, 542019, 722692, 903365, 1084038, 1445384, 1806730, 2168076, 2710095, 3613460, 4336152, 5420190, 7226920, 10840380, 21680760]

約数ペア:

[(1, 21680760), (2, 10840380), (3, 7226920), (4, 5420190), (5, 4336152), (6, 3613460), (8, 2710095), (10, 2168076), (12, 1806730), (15, 1445384), (20, 1084038), (24, 903365), (30, 722692), (40, 542019), (60, 361346), (79, 274440), (120, 180673), (158, 137220), (237, 91480), (316, 68610), (395, 54888), (474, 45740), (632, 34305), (790, 27444), (948, 22870), (1185, 18296), (1580, 13722), (1896, 11435), (2287, 9480), (2370, 9148), (3160, 6861), (4574, 4740)]