9905480

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{443}}^1$

素因数の和:510

約数の個数: 64

約数和(自身を含む): 24615360

約数和(自身を除く): 14709880

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 43, 52, 65, 86, 104, 130, 172, 215, 260, 344, 430, 443, 520, 559, 860, 886, 1118, 1720, 1772, 2215, 2236, 2795, 3544, 4430, 4472, 5590, 5759, 8860, 11180, 11518, 17720, 19049, 22360, 23036, 28795, 38098, 46072, 57590, 76196, 95245, 115180, 152392, 190490, 230360, 247637, 380980, 495274, 761960, 990548, 1238185, 1981096, 2476370, 4952740, 9905480]

約数ペア:

[(1, 9905480), (2, 4952740), (4, 2476370), (5, 1981096), (8, 1238185), (10, 990548), (13, 761960), (20, 495274), (26, 380980), (40, 247637), (43, 230360), (52, 190490), (65, 152392), (86, 115180), (104, 95245), (130, 76196), (172, 57590), (215, 46072), (260, 38098), (344, 28795), (430, 23036), (443, 22360), (520, 19049), (559, 17720), (860, 11518), (886, 11180), (1118, 8860), (1720, 5759), (1772, 5590), (2215, 4472), (2236, 4430), (2795, 3544)]