257466105

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{25889}}^1$

素因数の和:25930

約数の個数: 48

約数和(自身を含む): 508893840

約数和(自身を除く): 251427735

約数列:

[1, 3, 5, 9, 13, 15, 17, 39, 45, 51, 65, 85, 117, 153, 195, 221, 255, 585, 663, 765, 1105, 1989, 3315, 9945, 25889, 77667, 129445, 233001, 336557, 388335, 440113, 1009671, 1165005, 1320339, 1682785, 2200565, 3029013, 3961017, 5048355, 5721469, 6601695, 15145065, 17164407, 19805085, 28607345, 51493221, 85822035, 257466105]

約数ペア:

[(1, 257466105), (3, 85822035), (5, 51493221), (9, 28607345), (13, 19805085), (15, 17164407), (17, 15145065), (39, 6601695), (45, 5721469), (51, 5048355), (65, 3961017), (85, 3029013), (117, 2200565), (153, 1682785), (195, 1320339), (221, 1165005), (255, 1009671), (585, 440113), (663, 388335), (765, 336557), (1105, 233001), (1989, 129445), (3315, 77667), (9945, 25889)]