18964725

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{367}}^1$

素因数の和:446

約数の個数: 48

約数和(自身を含む): 34497792

約数和(自身を除く): 15533067

約数列:

[1, 3, 5, 13, 15, 25, 39, 53, 65, 75, 159, 195, 265, 325, 367, 689, 795, 975, 1101, 1325, 1835, 2067, 3445, 3975, 4771, 5505, 9175, 10335, 14313, 17225, 19451, 23855, 27525, 51675, 58353, 71565, 97255, 119275, 252863, 291765, 357825, 486275, 758589, 1264315, 1458825, 3792945, 6321575, 18964725]

約数ペア:

[(1, 18964725), (3, 6321575), (5, 3792945), (13, 1458825), (15, 1264315), (25, 758589), (39, 486275), (53, 357825), (65, 291765), (75, 252863), (159, 119275), (195, 97255), (265, 71565), (325, 58353), (367, 51675), (689, 27525), (795, 23855), (975, 19451), (1101, 17225), (1325, 14313), (1835, 10335), (2067, 9175), (3445, 5505), (3975, 4771)]