388629280

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{186841}}^1$

素因数の和:186869

約数の個数: 48

約数和(自身を含む): 988767864

約数和(自身を除く): 600138584

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 65, 80, 104, 130, 160, 208, 260, 416, 520, 1040, 2080, 186841, 373682, 747364, 934205, 1494728, 1868410, 2428933, 2989456, 3736820, 4857866, 5978912, 7473640, 9715732, 12144665, 14947280, 19431464, 24289330, 29894560, 38862928, 48578660, 77725856, 97157320, 194314640, 388629280]

約数ペア:

[(1, 388629280), (2, 194314640), (4, 97157320), (5, 77725856), (8, 48578660), (10, 38862928), (13, 29894560), (16, 24289330), (20, 19431464), (26, 14947280), (32, 12144665), (40, 9715732), (52, 7473640), (65, 5978912), (80, 4857866), (104, 3736820), (130, 2989456), (160, 2428933), (208, 1868410), (260, 1494728), (416, 934205), (520, 747364), (1040, 373682), (2080, 186841)]