204528640

素因数分解:

$2^{10}\times 5^1\times {\mathrm{43}}^1\times {\mathrm{929}}^1$

素因数の和:997

約数の個数: 88

約数和(自身を含む): 502579440

約数和(自身を除く): 298050800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 43, 64, 80, 86, 128, 160, 172, 215, 256, 320, 344, 430, 512, 640, 688, 860, 929, 1024, 1280, 1376, 1720, 1858, 2560, 2752, 3440, 3716, 4645, 5120, 5504, 6880, 7432, 9290, 11008, 13760, 14864, 18580, 22016, 27520, 29728, 37160, 39947, 44032, 55040, 59456, 74320, 79894, 110080, 118912, 148640, 159788, 199735, 220160, 237824, 297280, 319576, 399470, 475648, 594560, 639152, 798940, 951296, 1189120, 1278304, 1597880, 2378240, 2556608, 3195760, 4756480, 5113216, 6391520, 10226432, 12783040, 20452864, 25566080, 40905728, 51132160, 102264320, 204528640]

約数ペア:

[(1, 204528640), (2, 102264320), (4, 51132160), (5, 40905728), (8, 25566080), (10, 20452864), (16, 12783040), (20, 10226432), (32, 6391520), (40, 5113216), (43, 4756480), (64, 3195760), (80, 2556608), (86, 2378240), (128, 1597880), (160, 1278304), (172, 1189120), (215, 951296), (256, 798940), (320, 639152), (344, 594560), (430, 475648), (512, 399470), (640, 319576), (688, 297280), (860, 237824), (929, 220160), (1024, 199735), (1280, 159788), (1376, 148640), (1720, 118912), (1858, 110080), (2560, 79894), (2752, 74320), (3440, 59456), (3716, 55040), (4645, 44032), (5120, 39947), (5504, 37160), (6880, 29728), (7432, 27520), (9290, 22016), (11008, 18580), (13760, 14864)]