20184164

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{71}}^2$

素因数の和:177

約数の個数: 72

約数和(自身を含む): 48103104

約数和(自身を除く): 27918940

約数列:

[1, 2, 4, 7, 11, 13, 14, 22, 26, 28, 44, 52, 71, 77, 91, 142, 143, 154, 182, 284, 286, 308, 364, 497, 572, 781, 923, 994, 1001, 1562, 1846, 1988, 2002, 3124, 3692, 4004, 5041, 5467, 6461, 10082, 10153, 10934, 12922, 20164, 20306, 21868, 25844, 35287, 40612, 55451, 65533, 70574, 71071, 110902, 131066, 141148, 142142, 221804, 262132, 284284, 388157, 458731, 720863, 776314, 917462, 1441726, 1552628, 1834924, 2883452, 5046041, 10092082, 20184164]

約数ペア:

[(1, 20184164), (2, 10092082), (4, 5046041), (7, 2883452), (11, 1834924), (13, 1552628), (14, 1441726), (22, 917462), (26, 776314), (28, 720863), (44, 458731), (52, 388157), (71, 284284), (77, 262132), (91, 221804), (142, 142142), (143, 141148), (154, 131066), (182, 110902), (284, 71071), (286, 70574), (308, 65533), (364, 55451), (497, 40612), (572, 35287), (781, 25844), (923, 21868), (994, 20306), (1001, 20164), (1562, 12922), (1846, 10934), (1988, 10153), (2002, 10082), (3124, 6461), (3692, 5467), (4004, 5041)]