20778552

素因数分解:

$2^3\times 3^3\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{83}}^1$

素因数の和:178

約数の個数: 128

約数和(自身を含む): 62496000

約数和(自身を除く): 41717448

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 19, 24, 27, 36, 38, 54, 57, 61, 72, 76, 83, 108, 114, 122, 152, 166, 171, 183, 216, 228, 244, 249, 332, 342, 366, 456, 488, 498, 513, 549, 664, 684, 732, 747, 996, 1026, 1098, 1159, 1368, 1464, 1494, 1577, 1647, 1992, 2052, 2196, 2241, 2318, 2988, 3154, 3294, 3477, 4104, 4392, 4482, 4636, 4731, 5063, 5976, 6308, 6588, 6954, 8964, 9272, 9462, 10126, 10431, 12616, 13176, 13908, 14193, 15189, 17928, 18924, 20252, 20862, 27816, 28386, 30378, 31293, 37848, 40504, 41724, 42579, 45567, 56772, 60756, 62586, 83448, 85158, 91134, 96197, 113544, 121512, 125172, 136701, 170316, 182268, 192394, 250344, 273402, 288591, 340632, 364536, 384788, 546804, 577182, 769576, 865773, 1093608, 1154364, 1731546, 2308728, 2597319, 3463092, 5194638, 6926184, 10389276, 20778552]

約数ペア:

[(1, 20778552), (2, 10389276), (3, 6926184), (4, 5194638), (6, 3463092), (8, 2597319), (9, 2308728), (12, 1731546), (18, 1154364), (19, 1093608), (24, 865773), (27, 769576), (36, 577182), (38, 546804), (54, 384788), (57, 364536), (61, 340632), (72, 288591), (76, 273402), (83, 250344), (108, 192394), (114, 182268), (122, 170316), (152, 136701), (166, 125172), (171, 121512), (183, 113544), (216, 96197), (228, 91134), (244, 85158), (249, 83448), (332, 62586), (342, 60756), (366, 56772), (456, 45567), (488, 42579), (498, 41724), (513, 40504), (549, 37848), (664, 31293), (684, 30378), (732, 28386), (747, 27816), (996, 20862), (1026, 20252), (1098, 18924), (1159, 17928), (1368, 15189), (1464, 14193), (1494, 13908), (1577, 13176), (1647, 12616), (1992, 10431), (2052, 10126), (2196, 9462), (2241, 9272), (2318, 8964), (2988, 6954), (3154, 6588), (3294, 6308), (3477, 5976), (4104, 5063), (4392, 4731), (4482, 4636)]