61807275

素因数分解:

$3^2\times 5^2\times {\mathrm{53}}^1\times {\mathrm{71}}^1\times {\mathrm{73}}^1$

素因数の和:213

約数の個数: 72

約数和(自身を含む): 115947936

約数和(自身を除く): 54140661

約数列:

[1, 3, 5, 9, 15, 25, 45, 53, 71, 73, 75, 159, 213, 219, 225, 265, 355, 365, 477, 639, 657, 795, 1065, 1095, 1325, 1775, 1825, 2385, 3195, 3285, 3763, 3869, 3975, 5183, 5325, 5475, 11289, 11607, 11925, 15549, 15975, 16425, 18815, 19345, 25915, 33867, 34821, 46647, 56445, 58035, 77745, 94075, 96725, 129575, 169335, 174105, 233235, 274699, 282225, 290175, 388725, 824097, 846675, 870525, 1166175, 1373495, 2472291, 4120485, 6867475, 12361455, 20602425, 61807275]

約数ペア:

[(1, 61807275), (3, 20602425), (5, 12361455), (9, 6867475), (15, 4120485), (25, 2472291), (45, 1373495), (53, 1166175), (71, 870525), (73, 846675), (75, 824097), (159, 388725), (213, 290175), (219, 282225), (225, 274699), (265, 233235), (355, 174105), (365, 169335), (477, 129575), (639, 96725), (657, 94075), (795, 77745), (1065, 58035), (1095, 56445), (1325, 46647), (1775, 34821), (1825, 33867), (2385, 25915), (3195, 19345), (3285, 18815), (3763, 16425), (3869, 15975), (3975, 15549), (5183, 11925), (5325, 11607), (5475, 11289)]