20118340

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{4813}}^1$

素因数の和:4852

約数の個数: 48

約数和(自身を含む): 48525120

約数和(自身を除く): 28406780

約数列:

[1, 2, 4, 5, 10, 11, 19, 20, 22, 38, 44, 55, 76, 95, 110, 190, 209, 220, 380, 418, 836, 1045, 2090, 4180, 4813, 9626, 19252, 24065, 48130, 52943, 91447, 96260, 105886, 182894, 211772, 264715, 365788, 457235, 529430, 914470, 1005917, 1058860, 1828940, 2011834, 4023668, 5029585, 10059170, 20118340]

約数ペア:

[(1, 20118340), (2, 10059170), (4, 5029585), (5, 4023668), (10, 2011834), (11, 1828940), (19, 1058860), (20, 1005917), (22, 914470), (38, 529430), (44, 457235), (55, 365788), (76, 264715), (95, 211772), (110, 182894), (190, 105886), (209, 96260), (220, 91447), (380, 52943), (418, 48130), (836, 24065), (1045, 19252), (2090, 9626), (4180, 4813)]