27911780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{3463}}^1$

素因数の和:3516

約数の個数: 48

約数和(自身を含む): 65178624

約数和(自身を除く): 37266844

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 31, 52, 62, 65, 124, 130, 155, 260, 310, 403, 620, 806, 1612, 2015, 3463, 4030, 6926, 8060, 13852, 17315, 34630, 45019, 69260, 90038, 107353, 180076, 214706, 225095, 429412, 450190, 536765, 900380, 1073530, 1395589, 2147060, 2791178, 5582356, 6977945, 13955890, 27911780]

約数ペア:

[(1, 27911780), (2, 13955890), (4, 6977945), (5, 5582356), (10, 2791178), (13, 2147060), (20, 1395589), (26, 1073530), (31, 900380), (52, 536765), (62, 450190), (65, 429412), (124, 225095), (130, 214706), (155, 180076), (260, 107353), (310, 90038), (403, 69260), (620, 45019), (806, 34630), (1612, 17315), (2015, 13852), (3463, 8060), (4030, 6926)]