17972480

素因数分解:

$2^8\times 5^1\times {\mathrm{19}}^1\times {\mathrm{739}}^1$

素因数の和:779

約数の個数: 72

約数和(自身を含む): 45376800

約数和(自身を除く): 27404320

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, 739, 760, 1216, 1280, 1478, 1520, 2432, 2956, 3040, 3695, 4864, 5912, 6080, 7390, 11824, 12160, 14041, 14780, 23648, 24320, 28082, 29560, 47296, 56164, 59120, 70205, 94592, 112328, 118240, 140410, 189184, 224656, 236480, 280820, 449312, 472960, 561640, 898624, 945920, 1123280, 1797248, 2246560, 3594496, 4493120, 8986240, 17972480]

約数ペア:

[(1, 17972480), (2, 8986240), (4, 4493120), (5, 3594496), (8, 2246560), (10, 1797248), (16, 1123280), (19, 945920), (20, 898624), (32, 561640), (38, 472960), (40, 449312), (64, 280820), (76, 236480), (80, 224656), (95, 189184), (128, 140410), (152, 118240), (160, 112328), (190, 94592), (256, 70205), (304, 59120), (320, 56164), (380, 47296), (608, 29560), (640, 28082), (739, 24320), (760, 23648), (1216, 14780), (1280, 14041), (1478, 12160), (1520, 11824), (2432, 7390), (2956, 6080), (3040, 5912), (3695, 4864)]