17988432880

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{20441401}}^1$

素因数の和:20441425

約数の個数: 40

約数和(自身を含む): 45625209264

約数和(自身を除く): 27636776384

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 20441401, 40882802, 81765604, 102207005, 163531208, 204414010, 224855411, 327062416, 408828020, 449710822, 817656040, 899421644, 1124277055, 1635312080, 1798843288, 2248554110, 3597686576, 4497108220, 8994216440, 17988432880]

約数ペア:

[(1, 17988432880), (2, 8994216440), (4, 4497108220), (5, 3597686576), (8, 2248554110), (10, 1798843288), (11, 1635312080), (16, 1124277055), (20, 899421644), (22, 817656040), (40, 449710822), (44, 408828020), (55, 327062416), (80, 224855411), (88, 204414010), (110, 163531208), (176, 102207005), (220, 81765604), (440, 40882802), (880, 20441401)]