491330255

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{7643}}^1$

素因数の和:7727

約数の個数: 32

約数和(自身を含む): 678053376

約数和(自身を除く): 186723121

約数列:

[1, 5, 13, 23, 43, 65, 115, 215, 299, 559, 989, 1495, 2795, 4945, 7643, 12857, 38215, 64285, 99359, 175789, 328649, 496795, 878945, 1643245, 2285257, 4272437, 7558927, 11426285, 21362185, 37794635, 98266051, 491330255]

約数ペア:

[(1, 491330255), (5, 98266051), (13, 37794635), (23, 21362185), (43, 11426285), (65, 7558927), (115, 4272437), (215, 2285257), (299, 1643245), (559, 878945), (989, 496795), (1495, 328649), (2795, 175789), (4945, 99359), (7643, 64285), (12857, 38215)]