211765970

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^2\times {\mathrm{881}}^1$

素因数の和:987

約数の個数: 48

約数和(自身を含む): 420745752

約数和(自身を除く): 208979782

約数列:

[1, 2, 5, 10, 13, 26, 43, 65, 86, 130, 215, 430, 559, 881, 1118, 1762, 1849, 2795, 3698, 4405, 5590, 8810, 9245, 11453, 18490, 22906, 24037, 37883, 48074, 57265, 75766, 114530, 120185, 189415, 240370, 378830, 492479, 984958, 1628969, 2462395, 3257938, 4924790, 8144845, 16289690, 21176597, 42353194, 105882985, 211765970]

約数ペア:

[(1, 211765970), (2, 105882985), (5, 42353194), (10, 21176597), (13, 16289690), (26, 8144845), (43, 4924790), (65, 3257938), (86, 2462395), (130, 1628969), (215, 984958), (430, 492479), (559, 378830), (881, 240370), (1118, 189415), (1762, 120185), (1849, 114530), (2795, 75766), (3698, 57265), (4405, 48074), (5590, 37883), (8810, 24037), (9245, 22906), (11453, 18490)]