28766720

素因数分解:

$2^9\times 5^1\times {\mathrm{17}}^1\times {\mathrm{661}}^1$

素因数の和:701

約数の個数: 80

約数和(自身を含む): 73140408

約数和(自身を除く): 44373688

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 64, 68, 80, 85, 128, 136, 160, 170, 256, 272, 320, 340, 512, 544, 640, 661, 680, 1088, 1280, 1322, 1360, 2176, 2560, 2644, 2720, 3305, 4352, 5288, 5440, 6610, 8704, 10576, 10880, 11237, 13220, 21152, 21760, 22474, 26440, 42304, 43520, 44948, 52880, 56185, 84608, 89896, 105760, 112370, 169216, 179792, 211520, 224740, 338432, 359584, 423040, 449480, 719168, 846080, 898960, 1438336, 1692160, 1797920, 2876672, 3595840, 5753344, 7191680, 14383360, 28766720]

約数ペア:

[(1, 28766720), (2, 14383360), (4, 7191680), (5, 5753344), (8, 3595840), (10, 2876672), (16, 1797920), (17, 1692160), (20, 1438336), (32, 898960), (34, 846080), (40, 719168), (64, 449480), (68, 423040), (80, 359584), (85, 338432), (128, 224740), (136, 211520), (160, 179792), (170, 169216), (256, 112370), (272, 105760), (320, 89896), (340, 84608), (512, 56185), (544, 52880), (640, 44948), (661, 43520), (680, 42304), (1088, 26440), (1280, 22474), (1322, 21760), (1360, 21152), (2176, 13220), (2560, 11237), (2644, 10880), (2720, 10576), (3305, 8704), (4352, 6610), (5288, 5440)]