21562720

素因数分解:

$2^5\times 5^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{173}}^1$

素因数の和:248

約数の個数: 96

約数和(自身を含む): 55248480

約数和(自身を除く): 33685760

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 41, 76, 80, 82, 95, 152, 160, 164, 173, 190, 205, 304, 328, 346, 380, 410, 608, 656, 692, 760, 779, 820, 865, 1312, 1384, 1520, 1558, 1640, 1730, 2768, 3040, 3116, 3280, 3287, 3460, 3895, 5536, 6232, 6560, 6574, 6920, 7093, 7790, 12464, 13148, 13840, 14186, 15580, 16435, 24928, 26296, 27680, 28372, 31160, 32870, 35465, 52592, 56744, 62320, 65740, 70930, 105184, 113488, 124640, 131480, 134767, 141860, 226976, 262960, 269534, 283720, 525920, 539068, 567440, 673835, 1078136, 1134880, 1347670, 2156272, 2695340, 4312544, 5390680, 10781360, 21562720]

約数ペア:

[(1, 21562720), (2, 10781360), (4, 5390680), (5, 4312544), (8, 2695340), (10, 2156272), (16, 1347670), (19, 1134880), (20, 1078136), (32, 673835), (38, 567440), (40, 539068), (41, 525920), (76, 283720), (80, 269534), (82, 262960), (95, 226976), (152, 141860), (160, 134767), (164, 131480), (173, 124640), (190, 113488), (205, 105184), (304, 70930), (328, 65740), (346, 62320), (380, 56744), (410, 52592), (608, 35465), (656, 32870), (692, 31160), (760, 28372), (779, 27680), (820, 26296), (865, 24928), (1312, 16435), (1384, 15580), (1520, 14186), (1558, 13840), (1640, 13148), (1730, 12464), (2768, 7790), (3040, 7093), (3116, 6920), (3280, 6574), (3287, 6560), (3460, 6232), (3895, 5536)]