161057120

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{20543}}^1$

素因数の和:20572

約数の個数: 72

約数和(自身を含む): 442641024

約数和(自身を除く): 281583904

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 70, 80, 98, 112, 140, 160, 196, 224, 245, 280, 392, 490, 560, 784, 980, 1120, 1568, 1960, 3920, 7840, 20543, 41086, 82172, 102715, 143801, 164344, 205430, 287602, 328688, 410860, 575204, 657376, 719005, 821720, 1006607, 1150408, 1438010, 1643440, 2013214, 2300816, 2876020, 3286880, 4026428, 4601632, 5033035, 5752040, 8052856, 10066070, 11504080, 16105712, 20132140, 23008160, 32211424, 40264280, 80528560, 161057120]

約数ペア:

[(1, 161057120), (2, 80528560), (4, 40264280), (5, 32211424), (7, 23008160), (8, 20132140), (10, 16105712), (14, 11504080), (16, 10066070), (20, 8052856), (28, 5752040), (32, 5033035), (35, 4601632), (40, 4026428), (49, 3286880), (56, 2876020), (70, 2300816), (80, 2013214), (98, 1643440), (112, 1438010), (140, 1150408), (160, 1006607), (196, 821720), (224, 719005), (245, 657376), (280, 575204), (392, 410860), (490, 328688), (560, 287602), (784, 205430), (980, 164344), (1120, 143801), (1568, 102715), (1960, 82172), (3920, 41086), (7840, 20543)]