127802840

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{4091}}^1$

素因数の和:4184

約数の個数: 64

約数和(自身を含む): 318193920

約数和(自身を除く): 190391080

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 71, 88, 110, 142, 220, 284, 355, 440, 568, 710, 781, 1420, 1562, 2840, 3124, 3905, 4091, 6248, 7810, 8182, 15620, 16364, 20455, 31240, 32728, 40910, 45001, 81820, 90002, 163640, 180004, 225005, 290461, 360008, 450010, 580922, 900020, 1161844, 1452305, 1800040, 2323688, 2904610, 3195071, 5809220, 6390142, 11618440, 12780284, 15975355, 25560568, 31950710, 63901420, 127802840]

約数ペア:

[(1, 127802840), (2, 63901420), (4, 31950710), (5, 25560568), (8, 15975355), (10, 12780284), (11, 11618440), (20, 6390142), (22, 5809220), (40, 3195071), (44, 2904610), (55, 2323688), (71, 1800040), (88, 1452305), (110, 1161844), (142, 900020), (220, 580922), (284, 450010), (355, 360008), (440, 290461), (568, 225005), (710, 180004), (781, 163640), (1420, 90002), (1562, 81820), (2840, 45001), (3124, 40910), (3905, 32728), (4091, 31240), (6248, 20455), (7810, 16364), (8182, 15620)]