404138840

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{1443353}}^1$

素因数の和:1443371

約数の個数: 32

約数和(自身を含む): 1039214880

約数和(自身を除く): 635076040

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 1443353, 2886706, 5773412, 7216765, 10103471, 11546824, 14433530, 20206942, 28867060, 40413884, 50517355, 57734120, 80827768, 101034710, 202069420, 404138840]

約数ペア:

[(1, 404138840), (2, 202069420), (4, 101034710), (5, 80827768), (7, 57734120), (8, 50517355), (10, 40413884), (14, 28867060), (20, 20206942), (28, 14433530), (35, 11546824), (40, 10103471), (56, 7216765), (70, 5773412), (140, 2886706), (280, 1443353)]