20020880

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{22751}}^1$

素因数の和:22775

約数の個数: 40

約数和(自身を含む): 50782464

約数和(自身を除く): 30761584

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 22751, 45502, 91004, 113755, 182008, 227510, 250261, 364016, 455020, 500522, 910040, 1001044, 1251305, 1820080, 2002088, 2502610, 4004176, 5005220, 10010440, 20020880]

約数ペア:

[(1, 20020880), (2, 10010440), (4, 5005220), (5, 4004176), (8, 2502610), (10, 2002088), (11, 1820080), (16, 1251305), (20, 1001044), (22, 910040), (40, 500522), (44, 455020), (55, 364016), (80, 250261), (88, 227510), (110, 182008), (176, 113755), (220, 91004), (440, 45502), (880, 22751)]