280804720

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{6869}}^1$

素因数の和:6962

約数の個数: 80

約数和(自身を含む): 756469440

約数和(自身を除く): 475664720

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 73, 80, 112, 140, 146, 280, 292, 365, 511, 560, 584, 730, 1022, 1168, 1460, 2044, 2555, 2920, 4088, 5110, 5840, 6869, 8176, 10220, 13738, 20440, 27476, 34345, 40880, 48083, 54952, 68690, 96166, 109904, 137380, 192332, 240415, 274760, 384664, 480830, 501437, 549520, 769328, 961660, 1002874, 1923320, 2005748, 2507185, 3510059, 3846640, 4011496, 5014370, 7020118, 8022992, 10028740, 14040236, 17550295, 20057480, 28080472, 35100590, 40114960, 56160944, 70201180, 140402360, 280804720]

約数ペア:

[(1, 280804720), (2, 140402360), (4, 70201180), (5, 56160944), (7, 40114960), (8, 35100590), (10, 28080472), (14, 20057480), (16, 17550295), (20, 14040236), (28, 10028740), (35, 8022992), (40, 7020118), (56, 5014370), (70, 4011496), (73, 3846640), (80, 3510059), (112, 2507185), (140, 2005748), (146, 1923320), (280, 1002874), (292, 961660), (365, 769328), (511, 549520), (560, 501437), (584, 480830), (730, 384664), (1022, 274760), (1168, 240415), (1460, 192332), (2044, 137380), (2555, 109904), (2920, 96166), (4088, 68690), (5110, 54952), (5840, 48083), (6869, 40880), (8176, 34345), (10220, 27476), (13738, 20440)]