1890280

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{157}}^1$

素因数の和:218

約数の個数: 64

約数和(自身を含む): 5005440

約数和(自身を除く): 3115160

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 43, 56, 70, 86, 140, 157, 172, 215, 280, 301, 314, 344, 430, 602, 628, 785, 860, 1099, 1204, 1256, 1505, 1570, 1720, 2198, 2408, 3010, 3140, 4396, 5495, 6020, 6280, 6751, 8792, 10990, 12040, 13502, 21980, 27004, 33755, 43960, 47257, 54008, 67510, 94514, 135020, 189028, 236285, 270040, 378056, 472570, 945140, 1890280]

約数ペア:

[(1, 1890280), (2, 945140), (4, 472570), (5, 378056), (7, 270040), (8, 236285), (10, 189028), (14, 135020), (20, 94514), (28, 67510), (35, 54008), (40, 47257), (43, 43960), (56, 33755), (70, 27004), (86, 21980), (140, 13502), (157, 12040), (172, 10990), (215, 8792), (280, 6751), (301, 6280), (314, 6020), (344, 5495), (430, 4396), (602, 3140), (628, 3010), (785, 2408), (860, 2198), (1099, 1720), (1204, 1570), (1256, 1505)]