405587020

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{1192903}}^1$

素因数の和:1192929

約数の個数: 24

約数和(自身を含む): 901835424

約数和(自身を除く): 496248404

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 1192903, 2385806, 4771612, 5964515, 11929030, 20279351, 23858060, 40558702, 81117404, 101396755, 202793510, 405587020]

約数ペア:

[(1, 405587020), (2, 202793510), (4, 101396755), (5, 81117404), (10, 40558702), (17, 23858060), (20, 20279351), (34, 11929030), (68, 5964515), (85, 4771612), (170, 2385806), (340, 1192903)]