20124678

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{83}}^1\times {\mathrm{251}}^1$

素因数の和:369

約数の個数: 64

約数和(自身を含む): 48771072

約数和(自身を除く): 28646394

約数列:

[1, 2, 3, 6, 7, 14, 21, 23, 42, 46, 69, 83, 138, 161, 166, 249, 251, 322, 483, 498, 502, 581, 753, 966, 1162, 1506, 1743, 1757, 1909, 3486, 3514, 3818, 5271, 5727, 5773, 10542, 11454, 11546, 13363, 17319, 20833, 26726, 34638, 40089, 40411, 41666, 62499, 80178, 80822, 121233, 124998, 145831, 242466, 291662, 437493, 479159, 874986, 958318, 1437477, 2874954, 3354113, 6708226, 10062339, 20124678]

約数ペア:

[(1, 20124678), (2, 10062339), (3, 6708226), (6, 3354113), (7, 2874954), (14, 1437477), (21, 958318), (23, 874986), (42, 479159), (46, 437493), (69, 291662), (83, 242466), (138, 145831), (161, 124998), (166, 121233), (249, 80822), (251, 80178), (322, 62499), (483, 41666), (498, 40411), (502, 40089), (581, 34638), (753, 26726), (966, 20833), (1162, 17319), (1506, 13363), (1743, 11546), (1757, 11454), (1909, 10542), (3486, 5773), (3514, 5727), (3818, 5271)]