29956940

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{8863}}^1$

素因数の和:8898

約数の個数: 36

約数和(自身を含む): 68128704

約数和(自身を除く): 38171764

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 169, 260, 338, 676, 845, 1690, 3380, 8863, 17726, 35452, 44315, 88630, 115219, 177260, 230438, 460876, 576095, 1152190, 1497847, 2304380, 2995694, 5991388, 7489235, 14978470, 29956940]

約数ペア:

[(1, 29956940), (2, 14978470), (4, 7489235), (5, 5991388), (10, 2995694), (13, 2304380), (20, 1497847), (26, 1152190), (52, 576095), (65, 460876), (130, 230438), (169, 177260), (260, 115219), (338, 88630), (676, 44315), (845, 35452), (1690, 17726), (3380, 8863)]