217720320

素因数分解:

$2^9\times 3^1\times 5^1\times {\mathrm{28349}}^1$

素因数の和:28375

約数の個数: 80

約数和(自身を含む): 696049200

約数和(自身を除く): 478328880

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 128, 160, 192, 240, 256, 320, 384, 480, 512, 640, 768, 960, 1280, 1536, 1920, 2560, 3840, 7680, 28349, 56698, 85047, 113396, 141745, 170094, 226792, 283490, 340188, 425235, 453584, 566980, 680376, 850470, 907168, 1133960, 1360752, 1700940, 1814336, 2267920, 2721504, 3401880, 3628672, 4535840, 5443008, 6803760, 7257344, 9071680, 10886016, 13607520, 14514688, 18143360, 21772032, 27215040, 36286720, 43544064, 54430080, 72573440, 108860160, 217720320]

約数ペア:

[(1, 217720320), (2, 108860160), (3, 72573440), (4, 54430080), (5, 43544064), (6, 36286720), (8, 27215040), (10, 21772032), (12, 18143360), (15, 14514688), (16, 13607520), (20, 10886016), (24, 9071680), (30, 7257344), (32, 6803760), (40, 5443008), (48, 4535840), (60, 3628672), (64, 3401880), (80, 2721504), (96, 2267920), (120, 1814336), (128, 1700940), (160, 1360752), (192, 1133960), (240, 907168), (256, 850470), (320, 680376), (384, 566980), (480, 453584), (512, 425235), (640, 340188), (768, 283490), (960, 226792), (1280, 170094), (1536, 141745), (1920, 113396), (2560, 85047), (3840, 56698), (7680, 28349)]