71613440

素因数分解:

$2^{10}\times 5^1\times {\mathrm{71}}^1\times {\mathrm{197}}^1$

素因数の和:293

約数の個数: 88

約数和(自身を含む): 175092192

約数和(自身を除く): 103478752

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 71, 80, 128, 142, 160, 197, 256, 284, 320, 355, 394, 512, 568, 640, 710, 788, 985, 1024, 1136, 1280, 1420, 1576, 1970, 2272, 2560, 2840, 3152, 3940, 4544, 5120, 5680, 6304, 7880, 9088, 11360, 12608, 13987, 15760, 18176, 22720, 25216, 27974, 31520, 36352, 45440, 50432, 55948, 63040, 69935, 72704, 90880, 100864, 111896, 126080, 139870, 181760, 201728, 223792, 252160, 279740, 363520, 447584, 504320, 559480, 895168, 1008640, 1118960, 1790336, 2237920, 3580672, 4475840, 7161344, 8951680, 14322688, 17903360, 35806720, 71613440]

約数ペア:

[(1, 71613440), (2, 35806720), (4, 17903360), (5, 14322688), (8, 8951680), (10, 7161344), (16, 4475840), (20, 3580672), (32, 2237920), (40, 1790336), (64, 1118960), (71, 1008640), (80, 895168), (128, 559480), (142, 504320), (160, 447584), (197, 363520), (256, 279740), (284, 252160), (320, 223792), (355, 201728), (394, 181760), (512, 139870), (568, 126080), (640, 111896), (710, 100864), (788, 90880), (985, 72704), (1024, 69935), (1136, 63040), (1280, 55948), (1420, 50432), (1576, 45440), (1970, 36352), (2272, 31520), (2560, 27974), (2840, 25216), (3152, 22720), (3940, 18176), (4544, 15760), (5120, 13987), (5680, 12608), (6304, 11360), (7880, 9088)]