20795752016

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{607}}^1\times {\mathrm{8669}}^1$

素因数の和:9316

約数の個数: 80

約数和(自身を含む): 45755404800

約数和(自身を除く): 24959652784

約数列:

[1, 2, 4, 8, 13, 16, 19, 26, 38, 52, 76, 104, 152, 208, 247, 304, 494, 607, 988, 1214, 1976, 2428, 3952, 4856, 7891, 8669, 9712, 11533, 15782, 17338, 23066, 31564, 34676, 46132, 63128, 69352, 92264, 112697, 126256, 138704, 149929, 164711, 184528, 225394, 299858, 329422, 450788, 599716, 658844, 901576, 1199432, 1317688, 1803152, 2141243, 2398864, 2635376, 4282486, 5262083, 8564972, 10524166, 17129944, 21048332, 34259888, 42096664, 68407079, 84193328, 99979577, 136814158, 199959154, 273628316, 399918308, 547256632, 799836616, 1094513264, 1299734501, 1599673232, 2599469002, 5198938004, 10397876008, 20795752016]

約数ペア:

[(1, 20795752016), (2, 10397876008), (4, 5198938004), (8, 2599469002), (13, 1599673232), (16, 1299734501), (19, 1094513264), (26, 799836616), (38, 547256632), (52, 399918308), (76, 273628316), (104, 199959154), (152, 136814158), (208, 99979577), (247, 84193328), (304, 68407079), (494, 42096664), (607, 34259888), (988, 21048332), (1214, 17129944), (1976, 10524166), (2428, 8564972), (3952, 5262083), (4856, 4282486), (7891, 2635376), (8669, 2398864), (9712, 2141243), (11533, 1803152), (15782, 1317688), (17338, 1199432), (23066, 901576), (31564, 658844), (34676, 599716), (46132, 450788), (63128, 329422), (69352, 299858), (92264, 225394), (112697, 184528), (126256, 164711), (138704, 149929)]