1385120

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^1\times {\mathrm{787}}^1$

素因数の和:813

約数の個数: 48

約数和(自身を含む): 3574368

約数和(自身を除く): 2189248

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 80, 88, 110, 160, 176, 220, 352, 440, 787, 880, 1574, 1760, 3148, 3935, 6296, 7870, 8657, 12592, 15740, 17314, 25184, 31480, 34628, 43285, 62960, 69256, 86570, 125920, 138512, 173140, 277024, 346280, 692560, 1385120]

約数ペア:

[(1, 1385120), (2, 692560), (4, 346280), (5, 277024), (8, 173140), (10, 138512), (11, 125920), (16, 86570), (20, 69256), (22, 62960), (32, 43285), (40, 34628), (44, 31480), (55, 25184), (80, 17314), (88, 15740), (110, 12592), (160, 8657), (176, 7870), (220, 6296), (352, 3935), (440, 3148), (787, 1760), (880, 1574)]