77791480

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{211}}^1\times {\mathrm{709}}^1$

素因数の和:944

約数の個数: 64

約数和(自身を含む): 189655200

約数和(自身を除く): 111863720

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 211, 260, 422, 520, 709, 844, 1055, 1418, 1688, 2110, 2743, 2836, 3545, 4220, 5486, 5672, 7090, 8440, 9217, 10972, 13715, 14180, 18434, 21944, 27430, 28360, 36868, 46085, 54860, 73736, 92170, 109720, 149599, 184340, 299198, 368680, 598396, 747995, 1196792, 1495990, 1944787, 2991980, 3889574, 5983960, 7779148, 9723935, 15558296, 19447870, 38895740, 77791480]

約数ペア:

[(1, 77791480), (2, 38895740), (4, 19447870), (5, 15558296), (8, 9723935), (10, 7779148), (13, 5983960), (20, 3889574), (26, 2991980), (40, 1944787), (52, 1495990), (65, 1196792), (104, 747995), (130, 598396), (211, 368680), (260, 299198), (422, 184340), (520, 149599), (709, 109720), (844, 92170), (1055, 73736), (1418, 54860), (1688, 46085), (2110, 36868), (2743, 28360), (2836, 27430), (3545, 21944), (4220, 18434), (5486, 14180), (5672, 13715), (7090, 10972), (8440, 9217)]