20775420

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{79}}^1\times {\mathrm{487}}^1$

素因数の和:584

約数の個数: 96

約数和(自身を含む): 65587200

約数和(自身を除く): 44811780

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 79, 90, 108, 135, 158, 180, 237, 270, 316, 395, 474, 487, 540, 711, 790, 948, 974, 1185, 1422, 1461, 1580, 1948, 2133, 2370, 2435, 2844, 2922, 3555, 4266, 4383, 4740, 4870, 5844, 7110, 7305, 8532, 8766, 9740, 10665, 13149, 14220, 14610, 17532, 21330, 21915, 26298, 29220, 38473, 42660, 43830, 52596, 65745, 76946, 87660, 115419, 131490, 153892, 192365, 230838, 262980, 346257, 384730, 461676, 577095, 692514, 769460, 1038771, 1154190, 1385028, 1731285, 2077542, 2308380, 3462570, 4155084, 5193855, 6925140, 10387710, 20775420]

約数ペア:

[(1, 20775420), (2, 10387710), (3, 6925140), (4, 5193855), (5, 4155084), (6, 3462570), (9, 2308380), (10, 2077542), (12, 1731285), (15, 1385028), (18, 1154190), (20, 1038771), (27, 769460), (30, 692514), (36, 577095), (45, 461676), (54, 384730), (60, 346257), (79, 262980), (90, 230838), (108, 192365), (135, 153892), (158, 131490), (180, 115419), (237, 87660), (270, 76946), (316, 65745), (395, 52596), (474, 43830), (487, 42660), (540, 38473), (711, 29220), (790, 26298), (948, 21915), (974, 21330), (1185, 17532), (1422, 14610), (1461, 14220), (1580, 13149), (1948, 10665), (2133, 9740), (2370, 8766), (2435, 8532), (2844, 7305), (2922, 7110), (3555, 5844), (4266, 4870), (4383, 4740)]