128849420

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{131479}}^1$

素因数の和:131502

約数の個数: 36

約数和(自身を含む): 314763120

約数和(自身を除く): 185913700

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 131479, 262958, 525916, 657395, 920353, 1314790, 1840706, 2629580, 3681412, 4601765, 6442471, 9203530, 12884942, 18407060, 25769884, 32212355, 64424710, 128849420]

約数ペア:

[(1, 128849420), (2, 64424710), (4, 32212355), (5, 25769884), (7, 18407060), (10, 12884942), (14, 9203530), (20, 6442471), (28, 4601765), (35, 3681412), (49, 2629580), (70, 1840706), (98, 1314790), (140, 920353), (196, 657395), (245, 525916), (490, 262958), (980, 131479)]