51170990

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{20717}}^1$

素因数の和:20756

約数の個数: 32

約数和(自身を含む): 104418720

約数和(自身を除く): 53247730

約数列:

[1, 2, 5, 10, 13, 19, 26, 38, 65, 95, 130, 190, 247, 494, 1235, 2470, 20717, 41434, 103585, 207170, 269321, 393623, 538642, 787246, 1346605, 1968115, 2693210, 3936230, 5117099, 10234198, 25585495, 51170990]

約数ペア:

[(1, 51170990), (2, 25585495), (5, 10234198), (10, 5117099), (13, 3936230), (19, 2693210), (26, 1968115), (38, 1346605), (65, 787246), (95, 538642), (130, 393623), (190, 269321), (247, 207170), (494, 103585), (1235, 41434), (2470, 20717)]