12820660

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{593}}^1$

素因数の和:672

約数の個数: 48

約数和(自身を含む): 28740096

約数和(自身を除く): 15919436

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 47, 92, 94, 115, 188, 230, 235, 460, 470, 593, 940, 1081, 1186, 2162, 2372, 2965, 4324, 5405, 5930, 10810, 11860, 13639, 21620, 27278, 27871, 54556, 55742, 68195, 111484, 136390, 139355, 272780, 278710, 557420, 641033, 1282066, 2564132, 3205165, 6410330, 12820660]

約数ペア:

[(1, 12820660), (2, 6410330), (4, 3205165), (5, 2564132), (10, 1282066), (20, 641033), (23, 557420), (46, 278710), (47, 272780), (92, 139355), (94, 136390), (115, 111484), (188, 68195), (230, 55742), (235, 54556), (460, 27871), (470, 27278), (593, 21620), (940, 13639), (1081, 11860), (1186, 10810), (2162, 5930), (2372, 5405), (2965, 4324)]