19692040

素因数分解:

$2^3\times 5^1\times {\mathrm{317}}^1\times {\mathrm{1553}}^1$

素因数の和:1881

約数の個数: 32

約数和(自身を含む): 44475480

約数和(自身を除く): 24783440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 317, 634, 1268, 1553, 1585, 2536, 3106, 3170, 6212, 6340, 7765, 12424, 12680, 15530, 31060, 62120, 492301, 984602, 1969204, 2461505, 3938408, 4923010, 9846020, 19692040]

約数ペア:

[(1, 19692040), (2, 9846020), (4, 4923010), (5, 3938408), (8, 2461505), (10, 1969204), (20, 984602), (40, 492301), (317, 62120), (634, 31060), (1268, 15530), (1553, 12680), (1585, 12424), (2536, 7765), (3106, 6340), (3170, 6212)]