28348138

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{131}}^1$

素因数の和:223

約数の個数: 64

約数和(自身を含む): 55883520

約数和(自身を除く): 27535382

約数列:

[1, 2, 7, 13, 14, 26, 29, 41, 58, 82, 91, 131, 182, 203, 262, 287, 377, 406, 533, 574, 754, 917, 1066, 1189, 1703, 1834, 2378, 2639, 3406, 3731, 3799, 5278, 5371, 7462, 7598, 8323, 10742, 11921, 15457, 16646, 23842, 26593, 30914, 37597, 49387, 53186, 69823, 75194, 98774, 108199, 139646, 155759, 216398, 311518, 345709, 488761, 691418, 977522, 1090313, 2024867, 2180626, 4049734, 14174069, 28348138]

約数ペア:

[(1, 28348138), (2, 14174069), (7, 4049734), (13, 2180626), (14, 2024867), (26, 1090313), (29, 977522), (41, 691418), (58, 488761), (82, 345709), (91, 311518), (131, 216398), (182, 155759), (203, 139646), (262, 108199), (287, 98774), (377, 75194), (406, 69823), (533, 53186), (574, 49387), (754, 37597), (917, 30914), (1066, 26593), (1189, 23842), (1703, 16646), (1834, 15457), (2378, 11921), (2639, 10742), (3406, 8323), (3731, 7598), (3799, 7462), (5278, 5371)]