20195994020

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{346891}}^1$

素因数の和:347012

約数の個数: 48

約数和(自身を含む): 44058059136

約数和(自身を除く): 23862065116

約数列:

[1, 2, 4, 5, 10, 20, 41, 71, 82, 142, 164, 205, 284, 355, 410, 710, 820, 1420, 2911, 5822, 11644, 14555, 29110, 58220, 346891, 693782, 1387564, 1734455, 3468910, 6937820, 14222531, 24629261, 28445062, 49258522, 56890124, 71112655, 98517044, 123146305, 142225310, 246292610, 284450620, 492585220, 1009799701, 2019599402, 4039198804, 5048998505, 10097997010, 20195994020]

約数ペア:

[(1, 20195994020), (2, 10097997010), (4, 5048998505), (5, 4039198804), (10, 2019599402), (20, 1009799701), (41, 492585220), (71, 284450620), (82, 246292610), (142, 142225310), (164, 123146305), (205, 98517044), (284, 71112655), (355, 56890124), (410, 49258522), (710, 28445062), (820, 24629261), (1420, 14222531), (2911, 6937820), (5822, 3468910), (11644, 1734455), (14555, 1387564), (29110, 693782), (58220, 346891)]