128887720

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{3491}}^1$

素因数の和:3586

約数の個数: 64

約数和(自身を含む): 316794240

約数和(自身を除く): 187906520

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 71, 104, 130, 142, 260, 284, 355, 520, 568, 710, 923, 1420, 1846, 2840, 3491, 3692, 4615, 6982, 7384, 9230, 13964, 17455, 18460, 27928, 34910, 36920, 45383, 69820, 90766, 139640, 181532, 226915, 247861, 363064, 453830, 495722, 907660, 991444, 1239305, 1815320, 1982888, 2478610, 3222193, 4957220, 6444386, 9914440, 12888772, 16110965, 25777544, 32221930, 64443860, 128887720]

約数ペア:

[(1, 128887720), (2, 64443860), (4, 32221930), (5, 25777544), (8, 16110965), (10, 12888772), (13, 9914440), (20, 6444386), (26, 4957220), (40, 3222193), (52, 2478610), (65, 1982888), (71, 1815320), (104, 1239305), (130, 991444), (142, 907660), (260, 495722), (284, 453830), (355, 363064), (520, 247861), (568, 226915), (710, 181532), (923, 139640), (1420, 90766), (1846, 69820), (2840, 45383), (3491, 36920), (3692, 34910), (4615, 27928), (6982, 18460), (7384, 17455), (9230, 13964)]