155991940

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{541}}^1\times {\mathrm{1109}}^1$

素因数の和:1672

約数の個数: 48

約数和(自身を含む): 353752560

約数和(自身を除く): 197760620

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 541, 1082, 1109, 2164, 2218, 2705, 4436, 5410, 5545, 7033, 10820, 11090, 14066, 14417, 22180, 28132, 28834, 35165, 57668, 70330, 72085, 140660, 144170, 288340, 599969, 1199938, 2399876, 2999845, 5999690, 7799597, 11999380, 15599194, 31198388, 38997985, 77995970, 155991940]

約数ペア:

[(1, 155991940), (2, 77995970), (4, 38997985), (5, 31198388), (10, 15599194), (13, 11999380), (20, 7799597), (26, 5999690), (52, 2999845), (65, 2399876), (130, 1199938), (260, 599969), (541, 288340), (1082, 144170), (1109, 140660), (2164, 72085), (2218, 70330), (2705, 57668), (4436, 35165), (5410, 28834), (5545, 28132), (7033, 22180), (10820, 14417), (11090, 14066)]