1916176640

素因数分解:

$2^8\times 5^1\times 7^1\times {\mathrm{213859}}^1$

素因数の和:213887

約数の個数: 72

約数和(自身を含む): 5245558080

約数和(自身を除く): 3329381440

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 128, 140, 160, 224, 256, 280, 320, 448, 560, 640, 896, 1120, 1280, 1792, 2240, 4480, 8960, 213859, 427718, 855436, 1069295, 1497013, 1710872, 2138590, 2994026, 3421744, 4277180, 5988052, 6843488, 7485065, 8554360, 11976104, 13686976, 14970130, 17108720, 23952208, 27373952, 29940260, 34217440, 47904416, 54747904, 59880520, 68434880, 95808832, 119761040, 136869760, 191617664, 239522080, 273739520, 383235328, 479044160, 958088320, 1916176640]

約数ペア:

[(1, 1916176640), (2, 958088320), (4, 479044160), (5, 383235328), (7, 273739520), (8, 239522080), (10, 191617664), (14, 136869760), (16, 119761040), (20, 95808832), (28, 68434880), (32, 59880520), (35, 54747904), (40, 47904416), (56, 34217440), (64, 29940260), (70, 27373952), (80, 23952208), (112, 17108720), (128, 14970130), (140, 13686976), (160, 11976104), (224, 8554360), (256, 7485065), (280, 6843488), (320, 5988052), (448, 4277180), (560, 3421744), (640, 2994026), (896, 2138590), (1120, 1710872), (1280, 1497013), (1792, 1069295), (2240, 855436), (4480, 427718), (8960, 213859)]