20871987491380

素因数分解:

$2^2\times 5^1\times {\mathrm{4673}}^1\times {\mathrm{9109}}^1\times {\mathrm{24517}}^1$

素因数の和:38308

約数の個数: 48

約数和(自身を含む): 43847154645840

約数和(自身を除く): 22975167154460

約数列:

[1, 2, 4, 5, 10, 20, 4673, 9109, 9346, 18218, 18692, 23365, 24517, 36436, 45545, 46730, 49034, 91090, 93460, 98068, 122585, 182180, 245170, 490340, 42566357, 85132714, 114567941, 170265428, 212831785, 223325353, 229135882, 425663570, 446650706, 458271764, 572839705, 851327140, 893301412, 1116626765, 1145679410, 2233253530, 2291358820, 4466507060, 1043599374569, 2087198749138, 4174397498276, 5217996872845, 10435993745690, 20871987491380]

約数ペア:

[(1, 20871987491380), (2, 10435993745690), (4, 5217996872845), (5, 4174397498276), (10, 2087198749138), (20, 1043599374569), (4673, 4466507060), (9109, 2291358820), (9346, 2233253530), (18218, 1145679410), (18692, 1116626765), (23365, 893301412), (24517, 851327140), (36436, 572839705), (45545, 458271764), (46730, 446650706), (49034, 425663570), (91090, 229135882), (93460, 223325353), (98068, 212831785), (122585, 170265428), (182180, 114567941), (245170, 85132714), (490340, 42566357)]