20802060

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{163}}^1\times {\mathrm{709}}^1$

素因数の和:887

約数の個数: 72

約数和(自身を含む): 63576240

約数和(自身を除く): 42774180

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 163, 180, 326, 489, 652, 709, 815, 978, 1418, 1467, 1630, 1956, 2127, 2445, 2836, 2934, 3260, 3545, 4254, 4890, 5868, 6381, 7090, 7335, 8508, 9780, 10635, 12762, 14180, 14670, 21270, 25524, 29340, 31905, 42540, 63810, 115567, 127620, 231134, 346701, 462268, 577835, 693402, 1040103, 1155670, 1386804, 1733505, 2080206, 2311340, 3467010, 4160412, 5200515, 6934020, 10401030, 20802060]

約数ペア:

[(1, 20802060), (2, 10401030), (3, 6934020), (4, 5200515), (5, 4160412), (6, 3467010), (9, 2311340), (10, 2080206), (12, 1733505), (15, 1386804), (18, 1155670), (20, 1040103), (30, 693402), (36, 577835), (45, 462268), (60, 346701), (90, 231134), (163, 127620), (180, 115567), (326, 63810), (489, 42540), (652, 31905), (709, 29340), (815, 25524), (978, 21270), (1418, 14670), (1467, 14180), (1630, 12762), (1956, 10635), (2127, 9780), (2445, 8508), (2836, 7335), (2934, 7090), (3260, 6381), (3545, 5868), (4254, 4890)]