1720020

素因数分解:

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

素因数の和:384

約数の個数: 48

約数和(自身を含む): 4878720

約数和(自身を除く): 3158700

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 109, 218, 263, 327, 436, 526, 545, 654, 789, 1052, 1090, 1308, 1315, 1578, 1635, 2180, 2630, 3156, 3270, 3945, 5260, 6540, 7890, 15780, 28667, 57334, 86001, 114668, 143335, 172002, 286670, 344004, 430005, 573340, 860010, 1720020]

約数ペア:

[(1, 1720020), (2, 860010), (3, 573340), (4, 430005), (5, 344004), (6, 286670), (10, 172002), (12, 143335), (15, 114668), (20, 86001), (30, 57334), (60, 28667), (109, 15780), (218, 7890), (263, 6540), (327, 5260), (436, 3945), (526, 3270), (545, 3156), (654, 2630), (789, 2180), (1052, 1635), (1090, 1578), (1308, 1315)]