161961200

素因数分解:

$2^4\times 5^2\times {\mathrm{157}}^1\times {\mathrm{2579}}^1$

素因数の和:2754

約数の個数: 60

約数和(自身を含む): 391742040

約数和(自身を除く): 229780840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 157, 200, 314, 400, 628, 785, 1256, 1570, 2512, 2579, 3140, 3925, 5158, 6280, 7850, 10316, 12560, 12895, 15700, 20632, 25790, 31400, 41264, 51580, 62800, 64475, 103160, 128950, 206320, 257900, 404903, 515800, 809806, 1031600, 1619612, 2024515, 3239224, 4049030, 6478448, 8098060, 10122575, 16196120, 20245150, 32392240, 40490300, 80980600, 161961200]

約数ペア:

[(1, 161961200), (2, 80980600), (4, 40490300), (5, 32392240), (8, 20245150), (10, 16196120), (16, 10122575), (20, 8098060), (25, 6478448), (40, 4049030), (50, 3239224), (80, 2024515), (100, 1619612), (157, 1031600), (200, 809806), (314, 515800), (400, 404903), (628, 257900), (785, 206320), (1256, 128950), (1570, 103160), (2512, 64475), (2579, 62800), (3140, 51580), (3925, 41264), (5158, 31400), (6280, 25790), (7850, 20632), (10316, 15700), (12560, 12895)]