87499520

素因数分解:

$2^8\times 5^1\times {\mathrm{197}}^1\times {\mathrm{347}}^1$

素因数の和:565

約数の個数: 72

約数和(自身を含む): 211259664

約数和(自身を除く): 123760144

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 197, 256, 320, 347, 394, 640, 694, 788, 985, 1280, 1388, 1576, 1735, 1970, 2776, 3152, 3470, 3940, 5552, 6304, 6940, 7880, 11104, 12608, 13880, 15760, 22208, 25216, 27760, 31520, 44416, 50432, 55520, 63040, 68359, 88832, 111040, 126080, 136718, 222080, 252160, 273436, 341795, 444160, 546872, 683590, 1093744, 1367180, 2187488, 2734360, 4374976, 5468720, 8749952, 10937440, 17499904, 21874880, 43749760, 87499520]

約数ペア:

[(1, 87499520), (2, 43749760), (4, 21874880), (5, 17499904), (8, 10937440), (10, 8749952), (16, 5468720), (20, 4374976), (32, 2734360), (40, 2187488), (64, 1367180), (80, 1093744), (128, 683590), (160, 546872), (197, 444160), (256, 341795), (320, 273436), (347, 252160), (394, 222080), (640, 136718), (694, 126080), (788, 111040), (985, 88832), (1280, 68359), (1388, 63040), (1576, 55520), (1735, 50432), (1970, 44416), (2776, 31520), (3152, 27760), (3470, 25216), (3940, 22208), (5552, 15760), (6304, 13880), (6940, 12608), (7880, 11104)]