87475880

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{197}}^1\times {\mathrm{653}}^1$

素因数の和:878

約数の個数: 64

約数和(自身を含む): 209777040

約数和(自身を除く): 122301160

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 197, 340, 394, 653, 680, 788, 985, 1306, 1576, 1970, 2612, 3265, 3349, 3940, 5224, 6530, 6698, 7880, 11101, 13060, 13396, 16745, 22202, 26120, 26792, 33490, 44404, 55505, 66980, 88808, 111010, 128641, 133960, 222020, 257282, 444040, 514564, 643205, 1029128, 1286410, 2186897, 2572820, 4373794, 5145640, 8747588, 10934485, 17495176, 21868970, 43737940, 87475880]

約数ペア:

[(1, 87475880), (2, 43737940), (4, 21868970), (5, 17495176), (8, 10934485), (10, 8747588), (17, 5145640), (20, 4373794), (34, 2572820), (40, 2186897), (68, 1286410), (85, 1029128), (136, 643205), (170, 514564), (197, 444040), (340, 257282), (394, 222020), (653, 133960), (680, 128641), (788, 111010), (985, 88808), (1306, 66980), (1576, 55505), (1970, 44404), (2612, 33490), (3265, 26792), (3349, 26120), (3940, 22202), (5224, 16745), (6530, 13396), (6698, 13060), (7880, 11101)]