20695480

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{39799}}^1$

素因数の和:39823

約数の個数: 32

約数和(自身を含む): 50148000

約数和(自身を除く): 29452520

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 39799, 79598, 159196, 198995, 318392, 397990, 517387, 795980, 1034774, 1591960, 2069548, 2586935, 4139096, 5173870, 10347740, 20695480]

約数ペア:

[(1, 20695480), (2, 10347740), (4, 5173870), (5, 4139096), (8, 2586935), (10, 2069548), (13, 1591960), (20, 1034774), (26, 795980), (40, 517387), (52, 397990), (65, 318392), (104, 198995), (130, 159196), (260, 79598), (520, 39799)]