18784388

素因数分解:

$2^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1$

素因数の和:145

約数の個数: 96

約数和(自身を含む): 43868160

約数和(自身を除く): 25083772

約数列:

[1, 2, 4, 7, 14, 17, 19, 28, 31, 34, 38, 62, 67, 68, 76, 119, 124, 133, 134, 217, 238, 266, 268, 323, 434, 469, 476, 527, 532, 589, 646, 868, 938, 1054, 1139, 1178, 1273, 1292, 1876, 2077, 2108, 2261, 2278, 2356, 2546, 3689, 4123, 4154, 4522, 4556, 5092, 7378, 7973, 8246, 8308, 8911, 9044, 10013, 14539, 14756, 15946, 16492, 17822, 20026, 21641, 29078, 31892, 35309, 35644, 39463, 40052, 43282, 58156, 70091, 70618, 78926, 86564, 140182, 141236, 151487, 157852, 247163, 276241, 280364, 302974, 494326, 552482, 605948, 670871, 988652, 1104964, 1341742, 2683484, 4696097, 9392194, 18784388]

約数ペア:

[(1, 18784388), (2, 9392194), (4, 4696097), (7, 2683484), (14, 1341742), (17, 1104964), (19, 988652), (28, 670871), (31, 605948), (34, 552482), (38, 494326), (62, 302974), (67, 280364), (68, 276241), (76, 247163), (119, 157852), (124, 151487), (133, 141236), (134, 140182), (217, 86564), (238, 78926), (266, 70618), (268, 70091), (323, 58156), (434, 43282), (469, 40052), (476, 39463), (527, 35644), (532, 35309), (589, 31892), (646, 29078), (868, 21641), (938, 20026), (1054, 17822), (1139, 16492), (1178, 15946), (1273, 14756), (1292, 14539), (1876, 10013), (2077, 9044), (2108, 8911), (2261, 8308), (2278, 8246), (2356, 7973), (2546, 7378), (3689, 5092), (4123, 4556), (4154, 4522)]