21290587840

素因数分解:

$2^6\times 5^1\times {\mathrm{17}}^1\times {\mathrm{353}}^1\times {\mathrm{11087}}^1$

素因数の和:11474

約数の個数: 112

約数和(自身を含む): 53837384832

約数和(自身を除く): 32546796992

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 64, 68, 80, 85, 136, 160, 170, 272, 320, 340, 353, 544, 680, 706, 1088, 1360, 1412, 1765, 2720, 2824, 3530, 5440, 5648, 6001, 7060, 11087, 11296, 12002, 14120, 22174, 22592, 24004, 28240, 30005, 44348, 48008, 55435, 56480, 60010, 88696, 96016, 110870, 112960, 120020, 177392, 188479, 192032, 221740, 240040, 354784, 376958, 384064, 443480, 480080, 709568, 753916, 886960, 942395, 960160, 1507832, 1773920, 1884790, 1920320, 3015664, 3547840, 3769580, 3913711, 6031328, 7539160, 7827422, 12062656, 15078320, 15654844, 19568555, 30156640, 31309688, 39137110, 60313280, 62619376, 66533087, 78274220, 125238752, 133066174, 156548440, 250477504, 266132348, 313096880, 332665435, 532264696, 626193760, 665330870, 1064529392, 1252387520, 1330661740, 2129058784, 2661323480, 4258117568, 5322646960, 10645293920, 21290587840]

約数ペア:

[(1, 21290587840), (2, 10645293920), (4, 5322646960), (5, 4258117568), (8, 2661323480), (10, 2129058784), (16, 1330661740), (17, 1252387520), (20, 1064529392), (32, 665330870), (34, 626193760), (40, 532264696), (64, 332665435), (68, 313096880), (80, 266132348), (85, 250477504), (136, 156548440), (160, 133066174), (170, 125238752), (272, 78274220), (320, 66533087), (340, 62619376), (353, 60313280), (544, 39137110), (680, 31309688), (706, 30156640), (1088, 19568555), (1360, 15654844), (1412, 15078320), (1765, 12062656), (2720, 7827422), (2824, 7539160), (3530, 6031328), (5440, 3913711), (5648, 3769580), (6001, 3547840), (7060, 3015664), (11087, 1920320), (11296, 1884790), (12002, 1773920), (14120, 1507832), (22174, 960160), (22592, 942395), (24004, 886960), (28240, 753916), (30005, 709568), (44348, 480080), (48008, 443480), (55435, 384064), (56480, 376958), (60010, 354784), (88696, 240040), (96016, 221740), (110870, 192032), (112960, 188479), (120020, 177392)]