19654550

素因数分解:

$2^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{1217}}^1$

素因数の和:1265

約数の個数: 48

約数和(自身を含む): 40778640

約数和(自身を除く): 21124090

約数列:

[1, 2, 5, 10, 17, 19, 25, 34, 38, 50, 85, 95, 170, 190, 323, 425, 475, 646, 850, 950, 1217, 1615, 2434, 3230, 6085, 8075, 12170, 16150, 20689, 23123, 30425, 41378, 46246, 60850, 103445, 115615, 206890, 231230, 393091, 517225, 578075, 786182, 1034450, 1156150, 1965455, 3930910, 9827275, 19654550]

約数ペア:

[(1, 19654550), (2, 9827275), (5, 3930910), (10, 1965455), (17, 1156150), (19, 1034450), (25, 786182), (34, 578075), (38, 517225), (50, 393091), (85, 231230), (95, 206890), (170, 115615), (190, 103445), (323, 60850), (425, 46246), (475, 41378), (646, 30425), (850, 23123), (950, 20689), (1217, 16150), (1615, 12170), (2434, 8075), (3230, 6085)]