720565209

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{101}}^1\times {\mathrm{281}}^1$

素因数の和:439

約数の個数: 96

約数和(自身を含む): 1340172288

約数和(自身を除く): 619607079

約数列:

[1, 3, 7, 9, 13, 21, 31, 39, 63, 91, 93, 101, 117, 217, 273, 279, 281, 303, 403, 651, 707, 819, 843, 909, 1209, 1313, 1953, 1967, 2121, 2529, 2821, 3131, 3627, 3653, 3939, 5901, 6363, 8463, 8711, 9191, 9393, 10959, 11817, 17703, 21917, 25389, 25571, 26133, 27573, 28179, 28381, 32877, 40703, 60977, 65751, 76713, 78399, 82719, 85143, 113243, 122109, 182931, 197253, 198667, 230139, 255429, 284921, 339729, 366327, 368953, 548793, 596001, 792701, 854763, 879811, 1019187, 1106859, 1788003, 2378103, 2564289, 2582671, 2639433, 3320577, 6158677, 7134309, 7748013, 7918299, 11437543, 18476031, 23244039, 34312629, 55428093, 80062801, 102937887, 240188403, 720565209]

約数ペア:

[(1, 720565209), (3, 240188403), (7, 102937887), (9, 80062801), (13, 55428093), (21, 34312629), (31, 23244039), (39, 18476031), (63, 11437543), (91, 7918299), (93, 7748013), (101, 7134309), (117, 6158677), (217, 3320577), (273, 2639433), (279, 2582671), (281, 2564289), (303, 2378103), (403, 1788003), (651, 1106859), (707, 1019187), (819, 879811), (843, 854763), (909, 792701), (1209, 596001), (1313, 548793), (1953, 368953), (1967, 366327), (2121, 339729), (2529, 284921), (2821, 255429), (3131, 230139), (3627, 198667), (3653, 197253), (3939, 182931), (5901, 122109), (6363, 113243), (8463, 85143), (8711, 82719), (9191, 78399), (9393, 76713), (10959, 65751), (11817, 60977), (17703, 40703), (21917, 32877), (25389, 28381), (25571, 28179), (26133, 27573)]