1900532720

素因数分解:

$2^4\times 5^1\times {\mathrm{67}}^1\times {\mathrm{109}}^1\times {\mathrm{3253}}^1$

素因数の和:3442

約数の個数: 80

約数和(自身を含む): 4527225120

約数和(自身を除く): 2626692400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 67, 80, 109, 134, 218, 268, 335, 436, 536, 545, 670, 872, 1072, 1090, 1340, 1744, 2180, 2680, 3253, 4360, 5360, 6506, 7303, 8720, 13012, 14606, 16265, 26024, 29212, 32530, 36515, 52048, 58424, 65060, 73030, 116848, 130120, 146060, 217951, 260240, 292120, 354577, 435902, 584240, 709154, 871804, 1089755, 1418308, 1743608, 1772885, 2179510, 2836616, 3487216, 3545770, 4359020, 5673232, 7091540, 8718040, 14183080, 17436080, 23756659, 28366160, 47513318, 95026636, 118783295, 190053272, 237566590, 380106544, 475133180, 950266360, 1900532720]

約数ペア:

[(1, 1900532720), (2, 950266360), (4, 475133180), (5, 380106544), (8, 237566590), (10, 190053272), (16, 118783295), (20, 95026636), (40, 47513318), (67, 28366160), (80, 23756659), (109, 17436080), (134, 14183080), (218, 8718040), (268, 7091540), (335, 5673232), (436, 4359020), (536, 3545770), (545, 3487216), (670, 2836616), (872, 2179510), (1072, 1772885), (1090, 1743608), (1340, 1418308), (1744, 1089755), (2180, 871804), (2680, 709154), (3253, 584240), (4360, 435902), (5360, 354577), (6506, 292120), (7303, 260240), (8720, 217951), (13012, 146060), (14606, 130120), (16265, 116848), (26024, 73030), (29212, 65060), (32530, 58424), (36515, 52048)]