30018820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{263}}^1\times {\mathrm{439}}^1$

素因数の和:724

約数の個数: 48

約数和(自身を含む): 68302080

約数和(自身を除く): 38283260

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 263, 439, 526, 878, 1052, 1315, 1756, 2195, 2630, 3419, 4390, 5260, 5707, 6838, 8780, 11414, 13676, 17095, 22828, 28535, 34190, 57070, 68380, 114140, 115457, 230914, 461828, 577285, 1154570, 1500941, 2309140, 3001882, 6003764, 7504705, 15009410, 30018820]

約数ペア:

[(1, 30018820), (2, 15009410), (4, 7504705), (5, 6003764), (10, 3001882), (13, 2309140), (20, 1500941), (26, 1154570), (52, 577285), (65, 461828), (130, 230914), (260, 115457), (263, 114140), (439, 68380), (526, 57070), (878, 34190), (1052, 28535), (1315, 22828), (1756, 17095), (2195, 13676), (2630, 11414), (3419, 8780), (4390, 6838), (5260, 5707)]