64987720

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{71}}^1\times {\mathrm{467}}^1$

素因数の和:563

約数の個数: 96

約数和(自身を含む): 172860480

約数和(自身を除く): 107872760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 71, 98, 140, 142, 196, 245, 280, 284, 355, 392, 467, 490, 497, 568, 710, 934, 980, 994, 1420, 1868, 1960, 1988, 2335, 2485, 2840, 3269, 3479, 3736, 3976, 4670, 4970, 6538, 6958, 9340, 9940, 13076, 13916, 16345, 17395, 18680, 19880, 22883, 26152, 27832, 32690, 33157, 34790, 45766, 65380, 66314, 69580, 91532, 114415, 130760, 132628, 139160, 165785, 183064, 228830, 232099, 265256, 331570, 457660, 464198, 663140, 915320, 928396, 1160495, 1326280, 1624693, 1856792, 2320990, 3249386, 4641980, 6498772, 8123465, 9283960, 12997544, 16246930, 32493860, 64987720]

約数ペア:

[(1, 64987720), (2, 32493860), (4, 16246930), (5, 12997544), (7, 9283960), (8, 8123465), (10, 6498772), (14, 4641980), (20, 3249386), (28, 2320990), (35, 1856792), (40, 1624693), (49, 1326280), (56, 1160495), (70, 928396), (71, 915320), (98, 663140), (140, 464198), (142, 457660), (196, 331570), (245, 265256), (280, 232099), (284, 228830), (355, 183064), (392, 165785), (467, 139160), (490, 132628), (497, 130760), (568, 114415), (710, 91532), (934, 69580), (980, 66314), (994, 65380), (1420, 45766), (1868, 34790), (1960, 33157), (1988, 32690), (2335, 27832), (2485, 26152), (2840, 22883), (3269, 19880), (3479, 18680), (3736, 17395), (3976, 16345), (4670, 13916), (4970, 13076), (6538, 9940), (6958, 9340)]