1920280

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{787}}^1$

素因数の和:859

約数の個数: 32

約数和(自身を含む): 4397040

約数和(自身を除く): 2476760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 787, 1220, 1574, 2440, 3148, 3935, 6296, 7870, 15740, 31480, 48007, 96014, 192028, 240035, 384056, 480070, 960140, 1920280]

約数ペア:

[(1, 1920280), (2, 960140), (4, 480070), (5, 384056), (8, 240035), (10, 192028), (20, 96014), (40, 48007), (61, 31480), (122, 15740), (244, 7870), (305, 6296), (488, 3935), (610, 3148), (787, 2440), (1220, 1574)]