20301160

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1$

素因数の和:131

約数の個数: 128

約数和(自身を含む): 54172800

約数和(自身を除く): 33871640

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 29, 37, 40, 43, 44, 55, 58, 74, 86, 88, 110, 116, 145, 148, 172, 185, 215, 220, 232, 290, 296, 319, 344, 370, 407, 430, 440, 473, 580, 638, 740, 814, 860, 946, 1073, 1160, 1247, 1276, 1480, 1591, 1595, 1628, 1720, 1892, 2035, 2146, 2365, 2494, 2552, 3182, 3190, 3256, 3784, 4070, 4292, 4730, 4988, 5365, 6235, 6364, 6380, 7955, 8140, 8584, 9460, 9976, 10730, 11803, 12470, 12728, 12760, 13717, 15910, 16280, 17501, 18920, 21460, 23606, 24940, 27434, 31820, 35002, 42920, 46139, 47212, 49880, 54868, 59015, 63640, 68585, 70004, 87505, 92278, 94424, 109736, 118030, 137170, 140008, 175010, 184556, 230695, 236060, 274340, 350020, 369112, 461390, 472120, 507529, 548680, 700040, 922780, 1015058, 1845560, 2030116, 2537645, 4060232, 5075290, 10150580, 20301160]

約数ペア:

[(1, 20301160), (2, 10150580), (4, 5075290), (5, 4060232), (8, 2537645), (10, 2030116), (11, 1845560), (20, 1015058), (22, 922780), (29, 700040), (37, 548680), (40, 507529), (43, 472120), (44, 461390), (55, 369112), (58, 350020), (74, 274340), (86, 236060), (88, 230695), (110, 184556), (116, 175010), (145, 140008), (148, 137170), (172, 118030), (185, 109736), (215, 94424), (220, 92278), (232, 87505), (290, 70004), (296, 68585), (319, 63640), (344, 59015), (370, 54868), (407, 49880), (430, 47212), (440, 46139), (473, 42920), (580, 35002), (638, 31820), (740, 27434), (814, 24940), (860, 23606), (946, 21460), (1073, 18920), (1160, 17501), (1247, 16280), (1276, 15910), (1480, 13717), (1591, 12760), (1595, 12728), (1628, 12470), (1720, 11803), (1892, 10730), (2035, 9976), (2146, 9460), (2365, 8584), (2494, 8140), (2552, 7955), (3182, 6380), (3190, 6364), (3256, 6235), (3784, 5365), (4070, 4988), (4292, 4730)]