72570875

素因数分解:

$5^3\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1$

素因数の和:153

約数の個数: 64

約数和(自身を含む): 107557632

約数和(自身を除く): 34986757

約数列:

[1, 5, 13, 17, 25, 37, 65, 71, 85, 125, 185, 221, 325, 355, 425, 481, 629, 923, 925, 1105, 1207, 1625, 1775, 2125, 2405, 2627, 3145, 4615, 4625, 5525, 6035, 8177, 8875, 12025, 13135, 15691, 15725, 23075, 27625, 30175, 34151, 40885, 44659, 60125, 65675, 78455, 78625, 115375, 150875, 170755, 204425, 223295, 328375, 392275, 580567, 853775, 1022125, 1116475, 1961375, 2902835, 4268875, 5582375, 14514175, 72570875]

約数ペア:

[(1, 72570875), (5, 14514175), (13, 5582375), (17, 4268875), (25, 2902835), (37, 1961375), (65, 1116475), (71, 1022125), (85, 853775), (125, 580567), (185, 392275), (221, 328375), (325, 223295), (355, 204425), (425, 170755), (481, 150875), (629, 115375), (923, 78625), (925, 78455), (1105, 65675), (1207, 60125), (1625, 44659), (1775, 40885), (2125, 34151), (2405, 30175), (2627, 27625), (3145, 23075), (4615, 15725), (4625, 15691), (5525, 13135), (6035, 12025), (8177, 8875)]