78818320

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{97}}^1\times {\mathrm{1451}}^1$

素因数の和:1568

約数の個数: 80

約数和(自身を含む): 211736448

約数和(自身を除く): 132918128

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 97, 112, 140, 194, 280, 388, 485, 560, 679, 776, 970, 1358, 1451, 1552, 1940, 2716, 2902, 3395, 3880, 5432, 5804, 6790, 7255, 7760, 10157, 10864, 11608, 13580, 14510, 20314, 23216, 27160, 29020, 40628, 50785, 54320, 58040, 81256, 101570, 116080, 140747, 162512, 203140, 281494, 406280, 562988, 703735, 812560, 985229, 1125976, 1407470, 1970458, 2251952, 2814940, 3940916, 4926145, 5629880, 7881832, 9852290, 11259760, 15763664, 19704580, 39409160, 78818320]

約数ペア:

[(1, 78818320), (2, 39409160), (4, 19704580), (5, 15763664), (7, 11259760), (8, 9852290), (10, 7881832), (14, 5629880), (16, 4926145), (20, 3940916), (28, 2814940), (35, 2251952), (40, 1970458), (56, 1407470), (70, 1125976), (80, 985229), (97, 812560), (112, 703735), (140, 562988), (194, 406280), (280, 281494), (388, 203140), (485, 162512), (560, 140747), (679, 116080), (776, 101570), (970, 81256), (1358, 58040), (1451, 54320), (1552, 50785), (1940, 40628), (2716, 29020), (2902, 27160), (3395, 23216), (3880, 20314), (5432, 14510), (5804, 13580), (6790, 11608), (7255, 10864), (7760, 10157)]