205703560

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{125429}}^1$

素因数の和:125481

約数の個数: 32

約数和(自身を含む): 474125400

約数和(自身を除く): 268421840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 125429, 250858, 501716, 627145, 1003432, 1254290, 2508580, 5017160, 5142589, 10285178, 20570356, 25712945, 41140712, 51425890, 102851780, 205703560]

約数ペア:

[(1, 205703560), (2, 102851780), (4, 51425890), (5, 41140712), (8, 25712945), (10, 20570356), (20, 10285178), (40, 5142589), (41, 5017160), (82, 2508580), (164, 1254290), (205, 1003432), (328, 627145), (410, 501716), (820, 250858), (1640, 125429)]