17218940

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{113}}^1\times {\mathrm{401}}^1$

素因数の和:542

約数の個数: 48

約数和(自身を含む): 38495520

約数和(自身を除く): 21276580

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 113, 190, 226, 380, 401, 452, 565, 802, 1130, 1604, 2005, 2147, 2260, 4010, 4294, 7619, 8020, 8588, 10735, 15238, 21470, 30476, 38095, 42940, 45313, 76190, 90626, 152380, 181252, 226565, 453130, 860947, 906260, 1721894, 3443788, 4304735, 8609470, 17218940]

約数ペア:

[(1, 17218940), (2, 8609470), (4, 4304735), (5, 3443788), (10, 1721894), (19, 906260), (20, 860947), (38, 453130), (76, 226565), (95, 181252), (113, 152380), (190, 90626), (226, 76190), (380, 45313), (401, 42940), (452, 38095), (565, 30476), (802, 21470), (1130, 15238), (1604, 10735), (2005, 8588), (2147, 8020), (2260, 7619), (4010, 4294)]