51088640

素因数分解:

$2^8\times 5^1\times {\mathrm{167}}^1\times {\mathrm{239}}^1$

素因数の和:427

約数の個数: 72

約数和(自身を含む): 123621120

約数和(自身を除く): 72532480

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 167, 239, 256, 320, 334, 478, 640, 668, 835, 956, 1195, 1280, 1336, 1670, 1912, 2390, 2672, 3340, 3824, 4780, 5344, 6680, 7648, 9560, 10688, 13360, 15296, 19120, 21376, 26720, 30592, 38240, 39913, 42752, 53440, 61184, 76480, 79826, 106880, 152960, 159652, 199565, 213760, 305920, 319304, 399130, 638608, 798260, 1277216, 1596520, 2554432, 3193040, 5108864, 6386080, 10217728, 12772160, 25544320, 51088640]

約数ペア:

[(1, 51088640), (2, 25544320), (4, 12772160), (5, 10217728), (8, 6386080), (10, 5108864), (16, 3193040), (20, 2554432), (32, 1596520), (40, 1277216), (64, 798260), (80, 638608), (128, 399130), (160, 319304), (167, 305920), (239, 213760), (256, 199565), (320, 159652), (334, 152960), (478, 106880), (640, 79826), (668, 76480), (835, 61184), (956, 53440), (1195, 42752), (1280, 39913), (1336, 38240), (1670, 30592), (1912, 26720), (2390, 21376), (2672, 19120), (3340, 15296), (3824, 13360), (4780, 10688), (5344, 9560), (6680, 7648)]