215512990

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{283}}^1$

素因数の和:374

約数の個数: 128

約数和(自身を含む): 518234112

約数和(自身を除く): 302721122

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 23, 35, 43, 46, 55, 70, 77, 86, 110, 115, 154, 161, 215, 230, 253, 283, 301, 322, 385, 430, 473, 506, 566, 602, 770, 805, 946, 989, 1265, 1415, 1505, 1610, 1771, 1978, 1981, 2365, 2530, 2830, 3010, 3113, 3311, 3542, 3962, 4730, 4945, 6226, 6509, 6622, 6923, 8855, 9890, 9905, 10879, 12169, 13018, 13846, 15565, 16555, 17710, 19810, 21758, 21791, 24338, 31130, 32545, 33110, 34615, 43582, 45563, 54395, 60845, 65090, 69230, 71599, 76153, 85183, 91126, 108790, 108955, 121690, 133859, 143198, 152306, 170366, 217910, 227815, 267718, 279887, 357995, 380765, 425915, 455630, 501193, 559774, 669295, 715990, 761530, 851830, 937013, 1002386, 1338590, 1399435, 1874026, 1959209, 2505965, 2798870, 3078757, 3918418, 4685065, 5011930, 6157514, 9370130, 9796045, 15393785, 19592090, 21551299, 30787570, 43102598, 107756495, 215512990]

約数ペア:

[(1, 215512990), (2, 107756495), (5, 43102598), (7, 30787570), (10, 21551299), (11, 19592090), (14, 15393785), (22, 9796045), (23, 9370130), (35, 6157514), (43, 5011930), (46, 4685065), (55, 3918418), (70, 3078757), (77, 2798870), (86, 2505965), (110, 1959209), (115, 1874026), (154, 1399435), (161, 1338590), (215, 1002386), (230, 937013), (253, 851830), (283, 761530), (301, 715990), (322, 669295), (385, 559774), (430, 501193), (473, 455630), (506, 425915), (566, 380765), (602, 357995), (770, 279887), (805, 267718), (946, 227815), (989, 217910), (1265, 170366), (1415, 152306), (1505, 143198), (1610, 133859), (1771, 121690), (1978, 108955), (1981, 108790), (2365, 91126), (2530, 85183), (2830, 76153), (3010, 71599), (3113, 69230), (3311, 65090), (3542, 60845), (3962, 54395), (4730, 45563), (4945, 43582), (6226, 34615), (6509, 33110), (6622, 32545), (6923, 31130), (8855, 24338), (9890, 21791), (9905, 21758), (10879, 19810), (12169, 17710), (13018, 16555), (13846, 15565)]