25207515

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{83}}^1\times {\mathrm{397}}^1$

素因数の和:508

約数の個数: 48

約数和(自身を含む): 46938528

約数和(自身を除く): 21731013

約数列:

[1, 3, 5, 9, 15, 17, 45, 51, 83, 85, 153, 249, 255, 397, 415, 747, 765, 1191, 1245, 1411, 1985, 3573, 3735, 4233, 5955, 6749, 7055, 12699, 17865, 20247, 21165, 32951, 33745, 60741, 63495, 98853, 101235, 164755, 296559, 303705, 494265, 560167, 1482795, 1680501, 2800835, 5041503, 8402505, 25207515]

約数ペア:

[(1, 25207515), (3, 8402505), (5, 5041503), (9, 2800835), (15, 1680501), (17, 1482795), (45, 560167), (51, 494265), (83, 303705), (85, 296559), (153, 164755), (249, 101235), (255, 98853), (397, 63495), (415, 60741), (747, 33745), (765, 32951), (1191, 21165), (1245, 20247), (1411, 17865), (1985, 12699), (3573, 7055), (3735, 6749), (4233, 5955)]