20565558818

素因数分解:

$2^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{37}}^2\times {\mathrm{71}}^1\times {\mathrm{127}}^1$

素因数の和:305

約数の個数: 144

約数和(自身を含む): 39912155136

約数和(自身を除く): 19346596318

約数列:

[1, 2, 7, 14, 17, 34, 37, 49, 71, 74, 98, 119, 127, 142, 238, 254, 259, 497, 518, 629, 833, 889, 994, 1207, 1258, 1369, 1666, 1778, 1813, 2159, 2414, 2627, 2738, 3479, 3626, 4318, 4403, 4699, 5254, 6223, 6958, 8449, 8806, 9017, 9398, 9583, 12446, 15113, 16898, 18034, 18389, 19166, 23273, 30226, 30821, 32893, 36778, 44659, 46546, 59143, 61642, 63119, 65786, 67081, 79883, 89318, 97199, 105791, 118286, 126238, 128723, 134162, 153289, 159766, 162911, 173863, 194398, 211582, 230251, 257446, 306578, 312613, 325822, 333629, 347726, 441833, 460502, 559181, 625226, 667258, 680393, 883666, 1073023, 1118362, 1140377, 1217041, 1360786, 1652383, 2146046, 2188291, 2280754, 2335403, 2434082, 2955671, 3304766, 3914267, 4376582, 4670806, 4762751, 5671693, 5911342, 7511161, 7828534, 8519287, 9525502, 11343386, 11566681, 12344273, 15022322, 16347821, 17038574, 20689697, 23133362, 24688546, 32695642, 39701851, 41379394, 79403702, 80966767, 86409911, 144827879, 161933534, 172819822, 209852641, 277912957, 289655758, 419705282, 555825914, 604869377, 1209738754, 1468968487, 2937936974, 10282779409, 20565558818]

約数ペア:

[(1, 20565558818), (2, 10282779409), (7, 2937936974), (14, 1468968487), (17, 1209738754), (34, 604869377), (37, 555825914), (49, 419705282), (71, 289655758), (74, 277912957), (98, 209852641), (119, 172819822), (127, 161933534), (142, 144827879), (238, 86409911), (254, 80966767), (259, 79403702), (497, 41379394), (518, 39701851), (629, 32695642), (833, 24688546), (889, 23133362), (994, 20689697), (1207, 17038574), (1258, 16347821), (1369, 15022322), (1666, 12344273), (1778, 11566681), (1813, 11343386), (2159, 9525502), (2414, 8519287), (2627, 7828534), (2738, 7511161), (3479, 5911342), (3626, 5671693), (4318, 4762751), (4403, 4670806), (4699, 4376582), (5254, 3914267), (6223, 3304766), (6958, 2955671), (8449, 2434082), (8806, 2335403), (9017, 2280754), (9398, 2188291), (9583, 2146046), (12446, 1652383), (15113, 1360786), (16898, 1217041), (18034, 1140377), (18389, 1118362), (19166, 1073023), (23273, 883666), (30226, 680393), (30821, 667258), (32893, 625226), (36778, 559181), (44659, 460502), (46546, 441833), (59143, 347726), (61642, 333629), (63119, 325822), (65786, 312613), (67081, 306578), (79883, 257446), (89318, 230251), (97199, 211582), (105791, 194398), (118286, 173863), (126238, 162911), (128723, 159766), (134162, 153289)]