20020520

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{38501}}^1$

素因数の和:38525

約数の個数: 32

約数和(自身を含む): 48512520

約数和(自身を除く): 28492000

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 38501, 77002, 154004, 192505, 308008, 385010, 500513, 770020, 1001026, 1540040, 2002052, 2502565, 4004104, 5005130, 10010260, 20020520]

約数ペア:

[(1, 20020520), (2, 10010260), (4, 5005130), (5, 4004104), (8, 2502565), (10, 2002052), (13, 1540040), (20, 1001026), (26, 770020), (40, 500513), (52, 385010), (65, 308008), (104, 192505), (130, 154004), (260, 77002), (520, 38501)]