217688320

素因数分解:

$2^8\times 5^1\times {\mathrm{19}}^1\times {\mathrm{8951}}^1$

素因数の和:8991

約数の個数: 72

約数和(自身を含む): 548936640

約数和(自身を除く): 331248320

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 64, 76, 80, 95, 128, 152, 160, 190, 256, 304, 320, 380, 608, 640, 760, 1216, 1280, 1520, 2432, 3040, 4864, 6080, 8951, 12160, 17902, 24320, 35804, 44755, 71608, 89510, 143216, 170069, 179020, 286432, 340138, 358040, 572864, 680276, 716080, 850345, 1145728, 1360552, 1432160, 1700690, 2291456, 2721104, 2864320, 3401380, 5442208, 5728640, 6802760, 10884416, 11457280, 13605520, 21768832, 27211040, 43537664, 54422080, 108844160, 217688320]

約数ペア:

[(1, 217688320), (2, 108844160), (4, 54422080), (5, 43537664), (8, 27211040), (10, 21768832), (16, 13605520), (19, 11457280), (20, 10884416), (32, 6802760), (38, 5728640), (40, 5442208), (64, 3401380), (76, 2864320), (80, 2721104), (95, 2291456), (128, 1700690), (152, 1432160), (160, 1360552), (190, 1145728), (256, 850345), (304, 716080), (320, 680276), (380, 572864), (608, 358040), (640, 340138), (760, 286432), (1216, 179020), (1280, 170069), (1520, 143216), (2432, 89510), (3040, 71608), (4864, 44755), (6080, 35804), (8951, 24320), (12160, 17902)]