71257375

素因数分解:

$5^3\times 7^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1$

素因数の和:161

約数の個数: 64

約数和(自身を含む): 109264896

約数和(自身を除く): 38007521

約数列:

[1, 5, 7, 25, 31, 35, 37, 71, 125, 155, 175, 185, 217, 259, 355, 497, 775, 875, 925, 1085, 1147, 1295, 1775, 2201, 2485, 2627, 3875, 4625, 5425, 5735, 6475, 8029, 8875, 11005, 12425, 13135, 15407, 18389, 27125, 28675, 32375, 40145, 55025, 62125, 65675, 77035, 81437, 91945, 143375, 200725, 275125, 328375, 385175, 407185, 459725, 570059, 1003625, 1925875, 2035925, 2298625, 2850295, 10179625, 14251475, 71257375]

約数ペア:

[(1, 71257375), (5, 14251475), (7, 10179625), (25, 2850295), (31, 2298625), (35, 2035925), (37, 1925875), (71, 1003625), (125, 570059), (155, 459725), (175, 407185), (185, 385175), (217, 328375), (259, 275125), (355, 200725), (497, 143375), (775, 91945), (875, 81437), (925, 77035), (1085, 65675), (1147, 62125), (1295, 55025), (1775, 40145), (2201, 32375), (2485, 28675), (2627, 27125), (3875, 18389), (4625, 15407), (5425, 13135), (5735, 12425), (6475, 11005), (8029, 8875)]