28831284

素因数分解:

$2^2\times 3^2\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{691}}^1$

素因数の和:781

約数の個数: 72

約数和(自身を含む): 78085280

約数和(自身を除く): 49253996

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 19, 36, 38, 57, 61, 76, 114, 122, 171, 183, 228, 244, 342, 366, 549, 684, 691, 732, 1098, 1159, 1382, 2073, 2196, 2318, 2764, 3477, 4146, 4636, 6219, 6954, 8292, 10431, 12438, 13129, 13908, 20862, 24876, 26258, 39387, 41724, 42151, 52516, 78774, 84302, 118161, 126453, 157548, 168604, 236322, 252906, 379359, 472644, 505812, 758718, 800869, 1517436, 1601738, 2402607, 3203476, 4805214, 7207821, 9610428, 14415642, 28831284]

約数ペア:

[(1, 28831284), (2, 14415642), (3, 9610428), (4, 7207821), (6, 4805214), (9, 3203476), (12, 2402607), (18, 1601738), (19, 1517436), (36, 800869), (38, 758718), (57, 505812), (61, 472644), (76, 379359), (114, 252906), (122, 236322), (171, 168604), (183, 157548), (228, 126453), (244, 118161), (342, 84302), (366, 78774), (549, 52516), (684, 42151), (691, 41724), (732, 39387), (1098, 26258), (1159, 24876), (1382, 20862), (2073, 13908), (2196, 13129), (2318, 12438), (2764, 10431), (3477, 8292), (4146, 6954), (4636, 6219)]