68784640

素因数分解:

$2^9\times 5^1\times {\mathrm{97}}^1\times {\mathrm{277}}^1$

素因数の和:397

約数の個数: 80

約数和(自身を含む): 167223672

約数和(自身を除く): 98439032

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 97, 128, 160, 194, 256, 277, 320, 388, 485, 512, 554, 640, 776, 970, 1108, 1280, 1385, 1552, 1940, 2216, 2560, 2770, 3104, 3880, 4432, 5540, 6208, 7760, 8864, 11080, 12416, 15520, 17728, 22160, 24832, 26869, 31040, 35456, 44320, 49664, 53738, 62080, 70912, 88640, 107476, 124160, 134345, 141824, 177280, 214952, 248320, 268690, 354560, 429904, 537380, 709120, 859808, 1074760, 1719616, 2149520, 3439232, 4299040, 6878464, 8598080, 13756928, 17196160, 34392320, 68784640]

約数ペア:

[(1, 68784640), (2, 34392320), (4, 17196160), (5, 13756928), (8, 8598080), (10, 6878464), (16, 4299040), (20, 3439232), (32, 2149520), (40, 1719616), (64, 1074760), (80, 859808), (97, 709120), (128, 537380), (160, 429904), (194, 354560), (256, 268690), (277, 248320), (320, 214952), (388, 177280), (485, 141824), (512, 134345), (554, 124160), (640, 107476), (776, 88640), (970, 70912), (1108, 62080), (1280, 53738), (1385, 49664), (1552, 44320), (1940, 35456), (2216, 31040), (2560, 26869), (2770, 24832), (3104, 22160), (3880, 17728), (4432, 15520), (5540, 12416), (6208, 11080), (7760, 8864)]