278218948

素因数分解:

$2^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{41}}^2\times {\mathrm{257}}^1$

素因数の和:373

約数の個数: 72

約数和(自身を含む): 597453696

約数和(自身を除く): 319234748

約数列:

[1, 2, 4, 7, 14, 23, 28, 41, 46, 82, 92, 161, 164, 257, 287, 322, 514, 574, 644, 943, 1028, 1148, 1681, 1799, 1886, 3362, 3598, 3772, 5911, 6601, 6724, 7196, 10537, 11767, 11822, 13202, 21074, 23534, 23644, 26404, 38663, 41377, 42148, 47068, 73759, 77326, 82754, 147518, 154652, 165508, 242351, 270641, 295036, 432017, 484702, 541282, 864034, 969404, 1082564, 1696457, 1728068, 3024119, 3392914, 6048238, 6785828, 9936391, 12096476, 19872782, 39745564, 69554737, 139109474, 278218948]

約数ペア:

[(1, 278218948), (2, 139109474), (4, 69554737), (7, 39745564), (14, 19872782), (23, 12096476), (28, 9936391), (41, 6785828), (46, 6048238), (82, 3392914), (92, 3024119), (161, 1728068), (164, 1696457), (257, 1082564), (287, 969404), (322, 864034), (514, 541282), (574, 484702), (644, 432017), (943, 295036), (1028, 270641), (1148, 242351), (1681, 165508), (1799, 154652), (1886, 147518), (3362, 82754), (3598, 77326), (3772, 73759), (5911, 47068), (6601, 42148), (6724, 41377), (7196, 38663), (10537, 26404), (11767, 23644), (11822, 23534), (13202, 21074)]