2780408320

素因数分解:

$2^9\times 5^1\times {\mathrm{19}}^1\times {\mathrm{57163}}^1$

素因数の和:57205

約数の個数: 80

約数和(自身を含む): 7017452640

約数和(自身を除く): 4237044320

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, 512, 608, 640, 760, 1216, 1280, 1520, 2432, 2560, 3040, 4864, 6080, 9728, 12160, 24320, 48640, 57163, 114326, 228652, 285815, 457304, 571630, 914608, 1086097, 1143260, 1829216, 2172194, 2286520, 3658432, 4344388, 4573040, 5430485, 7316864, 8688776, 9146080, 10860970, 14633728, 17377552, 18292160, 21721940, 29267456, 34755104, 36584320, 43443880, 69510208, 73168640, 86887760, 139020416, 146337280, 173775520, 278040832, 347551040, 556081664, 695102080, 1390204160, 2780408320]

約数ペア:

[(1, 2780408320), (2, 1390204160), (4, 695102080), (5, 556081664), (8, 347551040), (10, 278040832), (16, 173775520), (19, 146337280), (20, 139020416), (32, 86887760), (38, 73168640), (40, 69510208), (64, 43443880), (76, 36584320), (80, 34755104), (95, 29267456), (128, 21721940), (152, 18292160), (160, 17377552), (190, 14633728), (256, 10860970), (304, 9146080), (320, 8688776), (380, 7316864), (512, 5430485), (608, 4573040), (640, 4344388), (760, 3658432), (1216, 2286520), (1280, 2172194), (1520, 1829216), (2432, 1143260), (2560, 1086097), (3040, 914608), (4864, 571630), (6080, 457304), (9728, 285815), (12160, 228652), (24320, 114326), (48640, 57163)]