71616640

素因数分解:

$2^7\times 5^1\times {\mathrm{317}}^1\times {\mathrm{353}}^1$

素因数の和:689

約数の個数: 64

約数和(自身を含む): 172235160

約数和(自身を除く): 100618520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 317, 320, 353, 634, 640, 706, 1268, 1412, 1585, 1765, 2536, 2824, 3170, 3530, 5072, 5648, 6340, 7060, 10144, 11296, 12680, 14120, 20288, 22592, 25360, 28240, 40576, 45184, 50720, 56480, 101440, 111901, 112960, 202880, 223802, 225920, 447604, 559505, 895208, 1119010, 1790416, 2238020, 3580832, 4476040, 7161664, 8952080, 14323328, 17904160, 35808320, 71616640]

約数ペア:

[(1, 71616640), (2, 35808320), (4, 17904160), (5, 14323328), (8, 8952080), (10, 7161664), (16, 4476040), (20, 3580832), (32, 2238020), (40, 1790416), (64, 1119010), (80, 895208), (128, 559505), (160, 447604), (317, 225920), (320, 223802), (353, 202880), (634, 112960), (640, 111901), (706, 101440), (1268, 56480), (1412, 50720), (1585, 45184), (1765, 40576), (2536, 28240), (2824, 25360), (3170, 22592), (3530, 20288), (5072, 14120), (5648, 12680), (6340, 11296), (7060, 10144)]