20460520

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{30089}}^1$

素因数の和:30117

約数の個数: 32

約数和(自身を含む): 48745800

約数和(自身を除く): 28285280

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 30089, 60178, 120356, 150445, 240712, 300890, 511513, 601780, 1023026, 1203560, 2046052, 2557565, 4092104, 5115130, 10230260, 20460520]

約数ペア:

[(1, 20460520), (2, 10230260), (4, 5115130), (5, 4092104), (8, 2557565), (10, 2046052), (17, 1203560), (20, 1023026), (34, 601780), (40, 511513), (68, 300890), (85, 240712), (136, 150445), (170, 120356), (340, 60178), (680, 30089)]