20180918156

素因数分解:

$2^2\times 7^1\times {\mathrm{41}}^1\times {\mathrm{431}}^1\times {\mathrm{40787}}^1$

素因数の和:41270

約数の個数: 48

約数和(自身を含む): 41443218432

約数和(自身を除く): 21262300276

約数列:

[1, 2, 4, 7, 14, 28, 41, 82, 164, 287, 431, 574, 862, 1148, 1724, 3017, 6034, 12068, 17671, 35342, 40787, 70684, 81574, 123697, 163148, 247394, 285509, 494788, 571018, 1142036, 1672267, 3344534, 6689068, 11705869, 17579197, 23411738, 35158394, 46823476, 70316788, 123054379, 246108758, 492217516, 720747077, 1441494154, 2882988308, 5045229539, 10090459078, 20180918156]

約数ペア:

[(1, 20180918156), (2, 10090459078), (4, 5045229539), (7, 2882988308), (14, 1441494154), (28, 720747077), (41, 492217516), (82, 246108758), (164, 123054379), (287, 70316788), (431, 46823476), (574, 35158394), (862, 23411738), (1148, 17579197), (1724, 11705869), (3017, 6689068), (6034, 3344534), (12068, 1672267), (17671, 1142036), (35342, 571018), (40787, 494788), (70684, 285509), (81574, 247394), (123697, 163148)]