131439140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{15391}}^1$

素因数の和:15468

約数の個数: 48

約数和(自身を含む): 320646144

約数和(自身を除く): 189207004

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 61, 70, 122, 140, 244, 305, 427, 610, 854, 1220, 1708, 2135, 4270, 8540, 15391, 30782, 61564, 76955, 107737, 153910, 215474, 307820, 430948, 538685, 938851, 1077370, 1877702, 2154740, 3755404, 4694255, 6571957, 9388510, 13143914, 18777020, 26287828, 32859785, 65719570, 131439140]

約数ペア:

[(1, 131439140), (2, 65719570), (4, 32859785), (5, 26287828), (7, 18777020), (10, 13143914), (14, 9388510), (20, 6571957), (28, 4694255), (35, 3755404), (61, 2154740), (70, 1877702), (122, 1077370), (140, 938851), (244, 538685), (305, 430948), (427, 307820), (610, 215474), (854, 153910), (1220, 107737), (1708, 76955), (2135, 61564), (4270, 30782), (8540, 15391)]