72491355

素因数分解:

$3^4\times 5^1\times {\mathrm{71}}^1\times {\mathrm{2521}}^1$

素因数の和:2609

約数の個数: 40

約数和(自身を含む): 131829984

約数和(自身を除く): 59338629

約数列:

[1, 3, 5, 9, 15, 27, 45, 71, 81, 135, 213, 355, 405, 639, 1065, 1917, 2521, 3195, 5751, 7563, 9585, 12605, 22689, 28755, 37815, 68067, 113445, 178991, 204201, 340335, 536973, 894955, 1021005, 1610919, 2684865, 4832757, 8054595, 14498271, 24163785, 72491355]

約数ペア:

[(1, 72491355), (3, 24163785), (5, 14498271), (9, 8054595), (15, 4832757), (27, 2684865), (45, 1610919), (71, 1021005), (81, 894955), (135, 536973), (213, 340335), (355, 204201), (405, 178991), (639, 113445), (1065, 68067), (1917, 37815), (2521, 28755), (3195, 22689), (5751, 12605), (7563, 9585)]