20295367640

素因数分解:

$2^3\times 5^1\times {\mathrm{283}}^1\times {\mathrm{641}}^1\times {\mathrm{2797}}^1$

素因数の和:3732

約数の個数: 64

約数和(自身を含む): 45913836960

約数和(自身を除く): 25618469320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 283, 566, 641, 1132, 1282, 1415, 2264, 2564, 2797, 2830, 3205, 5128, 5594, 5660, 6410, 11188, 11320, 12820, 13985, 22376, 25640, 27970, 55940, 111880, 181403, 362806, 725612, 791551, 907015, 1451224, 1583102, 1792877, 1814030, 3166204, 3585754, 3628060, 3957755, 6332408, 7171508, 7256120, 7915510, 8964385, 14343016, 15831020, 17928770, 31662040, 35857540, 71715080, 507384191, 1014768382, 2029536764, 2536920955, 4059073528, 5073841910, 10147683820, 20295367640]

約数ペア:

[(1, 20295367640), (2, 10147683820), (4, 5073841910), (5, 4059073528), (8, 2536920955), (10, 2029536764), (20, 1014768382), (40, 507384191), (283, 71715080), (566, 35857540), (641, 31662040), (1132, 17928770), (1282, 15831020), (1415, 14343016), (2264, 8964385), (2564, 7915510), (2797, 7256120), (2830, 7171508), (3205, 6332408), (5128, 3957755), (5594, 3628060), (5660, 3585754), (6410, 3166204), (11188, 1814030), (11320, 1792877), (12820, 1583102), (13985, 1451224), (22376, 907015), (25640, 791551), (27970, 725612), (55940, 362806), (111880, 181403)]