159388520

素因数分解:

$2^3\times 5^1\times {\mathrm{109}}^1\times {\mathrm{139}}^1\times {\mathrm{263}}^1$

素因数の和:522

約数の個数: 64

約数和(自身を含む): 365904000

約数和(自身を除く): 206515480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 109, 139, 218, 263, 278, 436, 526, 545, 556, 695, 872, 1052, 1090, 1112, 1315, 1390, 2104, 2180, 2630, 2780, 4360, 5260, 5560, 10520, 15151, 28667, 30302, 36557, 57334, 60604, 73114, 75755, 114668, 121208, 143335, 146228, 151510, 182785, 229336, 286670, 292456, 303020, 365570, 573340, 606040, 731140, 1146680, 1462280, 3984713, 7969426, 15938852, 19923565, 31877704, 39847130, 79694260, 159388520]

約数ペア:

[(1, 159388520), (2, 79694260), (4, 39847130), (5, 31877704), (8, 19923565), (10, 15938852), (20, 7969426), (40, 3984713), (109, 1462280), (139, 1146680), (218, 731140), (263, 606040), (278, 573340), (436, 365570), (526, 303020), (545, 292456), (556, 286670), (695, 229336), (872, 182785), (1052, 151510), (1090, 146228), (1112, 143335), (1315, 121208), (1390, 114668), (2104, 75755), (2180, 73114), (2630, 60604), (2780, 57334), (4360, 36557), (5260, 30302), (5560, 28667), (10520, 15151)]