2012318020

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{79}}^1\times {\mathrm{20879}}^1$

素因数の和:21028

約数の個数: 48

約数和(自身を含む): 4349721600

約数和(自身を除く): 2337403580

約数列:

[1, 2, 4, 5, 10, 20, 61, 79, 122, 158, 244, 305, 316, 395, 610, 790, 1220, 1580, 4819, 9638, 19276, 20879, 24095, 41758, 48190, 83516, 96380, 104395, 208790, 417580, 1273619, 1649441, 2547238, 3298882, 5094476, 6368095, 6597764, 8247205, 12736190, 16494410, 25472380, 32988820, 100615901, 201231802, 402463604, 503079505, 1006159010, 2012318020]

約数ペア:

[(1, 2012318020), (2, 1006159010), (4, 503079505), (5, 402463604), (10, 201231802), (20, 100615901), (61, 32988820), (79, 25472380), (122, 16494410), (158, 12736190), (244, 8247205), (305, 6597764), (316, 6368095), (395, 5094476), (610, 3298882), (790, 2547238), (1220, 1649441), (1580, 1273619), (4819, 417580), (9638, 208790), (19276, 104395), (20879, 96380), (24095, 83516), (41758, 48190)]