28907274

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{137}}^1\times {\mathrm{139}}^1$

素因数の和:315

約数の個数: 64

約数和(自身を含む): 66769920

約数和(自身を除く): 37862646

約数列:

[1, 2, 3, 6, 11, 22, 23, 33, 46, 66, 69, 137, 138, 139, 253, 274, 278, 411, 417, 506, 759, 822, 834, 1507, 1518, 1529, 3014, 3058, 3151, 3197, 4521, 4587, 6302, 6394, 9042, 9174, 9453, 9591, 18906, 19043, 19182, 34661, 35167, 38086, 57129, 69322, 70334, 103983, 105501, 114258, 207966, 209473, 211002, 418946, 437989, 628419, 875978, 1256838, 1313967, 2627934, 4817879, 9635758, 14453637, 28907274]

約数ペア:

[(1, 28907274), (2, 14453637), (3, 9635758), (6, 4817879), (11, 2627934), (22, 1313967), (23, 1256838), (33, 875978), (46, 628419), (66, 437989), (69, 418946), (137, 211002), (138, 209473), (139, 207966), (253, 114258), (274, 105501), (278, 103983), (411, 70334), (417, 69322), (506, 57129), (759, 38086), (822, 35167), (834, 34661), (1507, 19182), (1518, 19043), (1529, 18906), (3014, 9591), (3058, 9453), (3151, 9174), (3197, 9042), (4521, 6394), (4587, 6302)]