15720500

素因数分解:

$2^2\times 5^3\times {\mathrm{23}}^1\times {\mathrm{1367}}^1$

素因数の和:1409

約数の個数: 48

約数和(自身を含む): 35852544

約数和(自身を除く): 20132044

約数列:

[1, 2, 4, 5, 10, 20, 23, 25, 46, 50, 92, 100, 115, 125, 230, 250, 460, 500, 575, 1150, 1367, 2300, 2734, 2875, 5468, 5750, 6835, 11500, 13670, 27340, 31441, 34175, 62882, 68350, 125764, 136700, 157205, 170875, 314410, 341750, 628820, 683500, 786025, 1572050, 3144100, 3930125, 7860250, 15720500]

約数ペア:

[(1, 15720500), (2, 7860250), (4, 3930125), (5, 3144100), (10, 1572050), (20, 786025), (23, 683500), (25, 628820), (46, 341750), (50, 314410), (92, 170875), (100, 157205), (115, 136700), (125, 125764), (230, 68350), (250, 62882), (460, 34175), (500, 31441), (575, 27340), (1150, 13670), (1367, 11500), (2300, 6835), (2734, 5750), (2875, 5468)]