40170980

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{48989}}^1$

素因数の和:49039

約数の個数: 24

約数和(自身を含む): 86418360

約数和(自身を除く): 46247380

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 48989, 97978, 195956, 244945, 489890, 979780, 2008549, 4017098, 8034196, 10042745, 20085490, 40170980]

約数ペア:

[(1, 40170980), (2, 20085490), (4, 10042745), (5, 8034196), (10, 4017098), (20, 2008549), (41, 979780), (82, 489890), (164, 244945), (205, 195956), (410, 97978), (820, 48989)]