20565828

素因数分解:

$2^2\times 3^2\times {\mathrm{19}}^1\times {\mathrm{107}}^1\times {\mathrm{281}}^1$

素因数の和:417

約数の個数: 72

約数和(自身を含む): 55429920

約数和(自身を除く): 34864092

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 19, 36, 38, 57, 76, 107, 114, 171, 214, 228, 281, 321, 342, 428, 562, 642, 684, 843, 963, 1124, 1284, 1686, 1926, 2033, 2529, 3372, 3852, 4066, 5058, 5339, 6099, 8132, 10116, 10678, 12198, 16017, 18297, 21356, 24396, 30067, 32034, 36594, 48051, 60134, 64068, 73188, 90201, 96102, 120268, 180402, 192204, 270603, 360804, 541206, 571273, 1082412, 1142546, 1713819, 2285092, 3427638, 5141457, 6855276, 10282914, 20565828]

約数ペア:

[(1, 20565828), (2, 10282914), (3, 6855276), (4, 5141457), (6, 3427638), (9, 2285092), (12, 1713819), (18, 1142546), (19, 1082412), (36, 571273), (38, 541206), (57, 360804), (76, 270603), (107, 192204), (114, 180402), (171, 120268), (214, 96102), (228, 90201), (281, 73188), (321, 64068), (342, 60134), (428, 48051), (562, 36594), (642, 32034), (684, 30067), (843, 24396), (963, 21356), (1124, 18297), (1284, 16017), (1686, 12198), (1926, 10678), (2033, 10116), (2529, 8132), (3372, 6099), (3852, 5339), (4066, 5058)]