12405500

素因数分解:

$2^2\times 5^3\times {\mathrm{43}}^1\times {\mathrm{577}}^1$

素因数の和:639

約数の個数: 48

約数和(自身を含む): 27771744

約数和(自身を除く): 15366244

約数列:

[1, 2, 4, 5, 10, 20, 25, 43, 50, 86, 100, 125, 172, 215, 250, 430, 500, 577, 860, 1075, 1154, 2150, 2308, 2885, 4300, 5375, 5770, 10750, 11540, 14425, 21500, 24811, 28850, 49622, 57700, 72125, 99244, 124055, 144250, 248110, 288500, 496220, 620275, 1240550, 2481100, 3101375, 6202750, 12405500]

約数ペア:

[(1, 12405500), (2, 6202750), (4, 3101375), (5, 2481100), (10, 1240550), (20, 620275), (25, 496220), (43, 288500), (50, 248110), (86, 144250), (100, 124055), (125, 99244), (172, 72125), (215, 57700), (250, 49622), (430, 28850), (500, 24811), (577, 21500), (860, 14425), (1075, 11540), (1154, 10750), (2150, 5770), (2308, 5375), (2885, 4300)]