20156987140

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{373}}^1\times {\mathrm{142211}}^1$

素因数の和:142612

約数の個数: 48

約数和(自身を含む): 44677321920

約数和(自身を除く): 24520334780

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 373, 380, 746, 1492, 1865, 3730, 7087, 7460, 14174, 28348, 35435, 70870, 141740, 142211, 284422, 568844, 711055, 1422110, 2702009, 2844220, 5404018, 10808036, 13510045, 27020090, 53044703, 54040180, 106089406, 212178812, 265223515, 530447030, 1007849357, 1060894060, 2015698714, 4031397428, 5039246785, 10078493570, 20156987140]

約数ペア:

[(1, 20156987140), (2, 10078493570), (4, 5039246785), (5, 4031397428), (10, 2015698714), (19, 1060894060), (20, 1007849357), (38, 530447030), (76, 265223515), (95, 212178812), (190, 106089406), (373, 54040180), (380, 53044703), (746, 27020090), (1492, 13510045), (1865, 10808036), (3730, 5404018), (7087, 2844220), (7460, 2702009), (14174, 1422110), (28348, 711055), (35435, 568844), (70870, 284422), (141740, 142211)]