51978920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{2543}}^1$

素因数の和:2634

約数の個数: 64

約数和(自身を含む): 135544320

約数和(自身を除く): 83565400

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 73, 140, 146, 280, 292, 365, 511, 584, 730, 1022, 1460, 2044, 2543, 2555, 2920, 4088, 5086, 5110, 10172, 10220, 12715, 17801, 20344, 20440, 25430, 35602, 50860, 71204, 89005, 101720, 142408, 178010, 185639, 356020, 371278, 712040, 742556, 928195, 1299473, 1485112, 1856390, 2598946, 3712780, 5197892, 6497365, 7425560, 10395784, 12994730, 25989460, 51978920]

約数ペア:

[(1, 51978920), (2, 25989460), (4, 12994730), (5, 10395784), (7, 7425560), (8, 6497365), (10, 5197892), (14, 3712780), (20, 2598946), (28, 1856390), (35, 1485112), (40, 1299473), (56, 928195), (70, 742556), (73, 712040), (140, 371278), (146, 356020), (280, 185639), (292, 178010), (365, 142408), (511, 101720), (584, 89005), (730, 71204), (1022, 50860), (1460, 35602), (2044, 25430), (2543, 20440), (2555, 20344), (2920, 17801), (4088, 12715), (5086, 10220), (5110, 10172)]