2565220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{251}}^1$

素因数の和:340

約数の個数: 48

約数和(自身を含む): 6265728

約数和(自身を除く): 3700508

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 73, 140, 146, 251, 292, 365, 502, 511, 730, 1004, 1022, 1255, 1460, 1757, 2044, 2510, 2555, 3514, 5020, 5110, 7028, 8785, 10220, 17570, 18323, 35140, 36646, 73292, 91615, 128261, 183230, 256522, 366460, 513044, 641305, 1282610, 2565220]

約数ペア:

[(1, 2565220), (2, 1282610), (4, 641305), (5, 513044), (7, 366460), (10, 256522), (14, 183230), (20, 128261), (28, 91615), (35, 73292), (70, 36646), (73, 35140), (140, 18323), (146, 17570), (251, 10220), (292, 8785), (365, 7028), (502, 5110), (511, 5020), (730, 3514), (1004, 2555), (1022, 2510), (1255, 2044), (1460, 1757)]