15690469420

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{199}}^1\times {\mathrm{207491}}^1$

素因数の和:207718

約数の個数: 48

約数和(自身を含む): 34858656000

約数和(自身を除く): 19168186580

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 199, 380, 398, 796, 995, 1990, 3781, 3980, 7562, 15124, 18905, 37810, 75620, 207491, 414982, 829964, 1037455, 2074910, 3942329, 4149820, 7884658, 15769316, 19711645, 39423290, 41290709, 78846580, 82581418, 165162836, 206453545, 412907090, 784523471, 825814180, 1569046942, 3138093884, 3922617355, 7845234710, 15690469420]

約数ペア:

[(1, 15690469420), (2, 7845234710), (4, 3922617355), (5, 3138093884), (10, 1569046942), (19, 825814180), (20, 784523471), (38, 412907090), (76, 206453545), (95, 165162836), (190, 82581418), (199, 78846580), (380, 41290709), (398, 39423290), (796, 19711645), (995, 15769316), (1990, 7884658), (3781, 4149820), (3980, 3942329), (7562, 2074910), (15124, 1037455), (18905, 829964), (37810, 414982), (75620, 207491)]