278331378

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{2657}}^1$

素因数の和:2771

約数の個数: 64

約数和(自身を含む): 643023360

約数和(自身を除く): 364691982

約数列:

[1, 2, 3, 6, 13, 17, 26, 34, 39, 51, 78, 79, 102, 158, 221, 237, 442, 474, 663, 1027, 1326, 1343, 2054, 2657, 2686, 3081, 4029, 5314, 6162, 7971, 8058, 15942, 17459, 34541, 34918, 45169, 52377, 69082, 90338, 103623, 104754, 135507, 207246, 209903, 271014, 419806, 587197, 629709, 1174394, 1259418, 1761591, 2728739, 3523182, 3568351, 5457478, 7136702, 8186217, 10705053, 16372434, 21410106, 46388563, 92777126, 139165689, 278331378]

約数ペア:

[(1, 278331378), (2, 139165689), (3, 92777126), (6, 46388563), (13, 21410106), (17, 16372434), (26, 10705053), (34, 8186217), (39, 7136702), (51, 5457478), (78, 3568351), (79, 3523182), (102, 2728739), (158, 1761591), (221, 1259418), (237, 1174394), (442, 629709), (474, 587197), (663, 419806), (1027, 271014), (1326, 209903), (1343, 207246), (2054, 135507), (2657, 104754), (2686, 103623), (3081, 90338), (4029, 69082), (5314, 52377), (6162, 45169), (7971, 34918), (8058, 34541), (15942, 17459)]