2021900020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{853}}^1\times {\mathrm{16931}}^1$

素因数の和:17800

約数の個数: 48

約数和(自身を含む): 4858535808

約数和(自身を除く): 2836635788

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 853, 1706, 3412, 4265, 5971, 8530, 11942, 16931, 17060, 23884, 29855, 33862, 59710, 67724, 84655, 118517, 119420, 169310, 237034, 338620, 474068, 592585, 1185170, 2370340, 14442143, 28884286, 57768572, 72210715, 101095001, 144421430, 202190002, 288842860, 404380004, 505475005, 1010950010, 2021900020]

約数ペア:

[(1, 2021900020), (2, 1010950010), (4, 505475005), (5, 404380004), (7, 288842860), (10, 202190002), (14, 144421430), (20, 101095001), (28, 72210715), (35, 57768572), (70, 28884286), (140, 14442143), (853, 2370340), (1706, 1185170), (3412, 592585), (4265, 474068), (5971, 338620), (8530, 237034), (11942, 169310), (16931, 119420), (17060, 118517), (23884, 84655), (29855, 67724), (33862, 59710)]