65017720

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{103}}^1\times {\mathrm{367}}^1$

素因数の和:524

約数の個数: 64

約数和(自身を含む): 151557120

約数和(自身を除く): 86539400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 103, 172, 206, 215, 344, 367, 412, 430, 515, 734, 824, 860, 1030, 1468, 1720, 1835, 2060, 2936, 3670, 4120, 4429, 7340, 8858, 14680, 15781, 17716, 22145, 31562, 35432, 37801, 44290, 63124, 75602, 78905, 88580, 126248, 151204, 157810, 177160, 189005, 302408, 315620, 378010, 631240, 756020, 1512040, 1625443, 3250886, 6501772, 8127215, 13003544, 16254430, 32508860, 65017720]

約数ペア:

[(1, 65017720), (2, 32508860), (4, 16254430), (5, 13003544), (8, 8127215), (10, 6501772), (20, 3250886), (40, 1625443), (43, 1512040), (86, 756020), (103, 631240), (172, 378010), (206, 315620), (215, 302408), (344, 189005), (367, 177160), (412, 157810), (430, 151204), (515, 126248), (734, 88580), (824, 78905), (860, 75602), (1030, 63124), (1468, 44290), (1720, 37801), (1835, 35432), (2060, 31562), (2936, 22145), (3670, 17716), (4120, 15781), (4429, 14680), (7340, 8858)]