20439272

素因数分解:

$2^3\times 7^2\times {\mathrm{23}}^1\times {\mathrm{2267}}^1$

素因数の和:2310

約数の個数: 48

約数和(自身を含む): 46539360

約数和(自身を除く): 26100088

約数列:

[1, 2, 4, 7, 8, 14, 23, 28, 46, 49, 56, 92, 98, 161, 184, 196, 322, 392, 644, 1127, 1288, 2254, 2267, 4508, 4534, 9016, 9068, 15869, 18136, 31738, 52141, 63476, 104282, 111083, 126952, 208564, 222166, 364987, 417128, 444332, 729974, 888664, 1459948, 2554909, 2919896, 5109818, 10219636, 20439272]

約数ペア:

[(1, 20439272), (2, 10219636), (4, 5109818), (7, 2919896), (8, 2554909), (14, 1459948), (23, 888664), (28, 729974), (46, 444332), (49, 417128), (56, 364987), (92, 222166), (98, 208564), (161, 126952), (184, 111083), (196, 104282), (322, 63476), (392, 52141), (644, 31738), (1127, 18136), (1288, 15869), (2254, 9068), (2267, 9016), (4508, 4534)]