80387820

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{197}}^1\times {\mathrm{2267}}^1$

素因数の和:2479

約数の個数: 72

約数和(自身を含む): 245188944

約数和(自身を除く): 164801124

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 197, 394, 591, 788, 985, 1182, 1773, 1970, 2267, 2364, 2955, 3546, 3940, 4534, 5910, 6801, 7092, 8865, 9068, 11335, 11820, 13602, 17730, 20403, 22670, 27204, 34005, 35460, 40806, 45340, 68010, 81612, 102015, 136020, 204030, 408060, 446599, 893198, 1339797, 1786396, 2232995, 2679594, 4019391, 4465990, 5359188, 6698985, 8038782, 8931980, 13397970, 16077564, 20096955, 26795940, 40193910, 80387820]

約数ペア:

[(1, 80387820), (2, 40193910), (3, 26795940), (4, 20096955), (5, 16077564), (6, 13397970), (9, 8931980), (10, 8038782), (12, 6698985), (15, 5359188), (18, 4465990), (20, 4019391), (30, 2679594), (36, 2232995), (45, 1786396), (60, 1339797), (90, 893198), (180, 446599), (197, 408060), (394, 204030), (591, 136020), (788, 102015), (985, 81612), (1182, 68010), (1773, 45340), (1970, 40806), (2267, 35460), (2364, 34005), (2955, 27204), (3546, 22670), (3940, 20403), (4534, 17730), (5910, 13602), (6801, 11820), (7092, 11335), (8865, 9068)]