399088640

素因数分解:

$2^{10}\times 5^1\times {\mathrm{23}}^1\times {\mathrm{3389}}^1$

素因数の和:3437

約数の個数: 88

約数和(自身を含む): 999263520

約数和(自身を除く): 600174880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 32, 40, 46, 64, 80, 92, 115, 128, 160, 184, 230, 256, 320, 368, 460, 512, 640, 736, 920, 1024, 1280, 1472, 1840, 2560, 2944, 3389, 3680, 5120, 5888, 6778, 7360, 11776, 13556, 14720, 16945, 23552, 27112, 29440, 33890, 54224, 58880, 67780, 77947, 108448, 117760, 135560, 155894, 216896, 271120, 311788, 389735, 433792, 542240, 623576, 779470, 867584, 1084480, 1247152, 1558940, 1735168, 2168960, 2494304, 3117880, 3470336, 4337920, 4988608, 6235760, 8675840, 9977216, 12471520, 17351680, 19954432, 24943040, 39908864, 49886080, 79817728, 99772160, 199544320, 399088640]

約数ペア:

[(1, 399088640), (2, 199544320), (4, 99772160), (5, 79817728), (8, 49886080), (10, 39908864), (16, 24943040), (20, 19954432), (23, 17351680), (32, 12471520), (40, 9977216), (46, 8675840), (64, 6235760), (80, 4988608), (92, 4337920), (115, 3470336), (128, 3117880), (160, 2494304), (184, 2168960), (230, 1735168), (256, 1558940), (320, 1247152), (368, 1084480), (460, 867584), (512, 779470), (640, 623576), (736, 542240), (920, 433792), (1024, 389735), (1280, 311788), (1472, 271120), (1840, 216896), (2560, 155894), (2944, 135560), (3389, 117760), (3680, 108448), (5120, 77947), (5888, 67780), (6778, 58880), (7360, 54224), (11776, 33890), (13556, 29440), (14720, 27112), (16945, 23552)]