261356396

素因数分解:

$2^2\times 7^3\times {\mathrm{71}}^1\times {\mathrm{2683}}^1$

素因数の和:2779

約数の個数: 48

約数和(自身を含む): 541094400

約数和(自身を除く): 279738004

約数列:

[1, 2, 4, 7, 14, 28, 49, 71, 98, 142, 196, 284, 343, 497, 686, 994, 1372, 1988, 2683, 3479, 5366, 6958, 10732, 13916, 18781, 24353, 37562, 48706, 75124, 97412, 131467, 190493, 262934, 380986, 525868, 761972, 920269, 1333451, 1840538, 2666902, 3681076, 5333804, 9334157, 18668314, 37336628, 65339099, 130678198, 261356396]

約数ペア:

[(1, 261356396), (2, 130678198), (4, 65339099), (7, 37336628), (14, 18668314), (28, 9334157), (49, 5333804), (71, 3681076), (98, 2666902), (142, 1840538), (196, 1333451), (284, 920269), (343, 761972), (497, 525868), (686, 380986), (994, 262934), (1372, 190493), (1988, 131467), (2683, 97412), (3479, 75124), (5366, 48706), (6958, 37562), (10732, 24353), (13916, 18781)]