779719720

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{78919}}^1$

素因数の和:78962

約数の個数: 64

約数和(自身を含む): 1988784000

約数和(自身を除く): 1209064280

約数列:

[1, 2, 4, 5, 8, 10, 13, 19, 20, 26, 38, 40, 52, 65, 76, 95, 104, 130, 152, 190, 247, 260, 380, 494, 520, 760, 988, 1235, 1976, 2470, 4940, 9880, 78919, 157838, 315676, 394595, 631352, 789190, 1025947, 1499461, 1578380, 2051894, 2998922, 3156760, 4103788, 5129735, 5997844, 7497305, 8207576, 10259470, 11995688, 14994610, 19492993, 20518940, 29989220, 38985986, 41037880, 59978440, 77971972, 97464965, 155943944, 194929930, 389859860, 779719720]

約数ペア:

[(1, 779719720), (2, 389859860), (4, 194929930), (5, 155943944), (8, 97464965), (10, 77971972), (13, 59978440), (19, 41037880), (20, 38985986), (26, 29989220), (38, 20518940), (40, 19492993), (52, 14994610), (65, 11995688), (76, 10259470), (95, 8207576), (104, 7497305), (130, 5997844), (152, 5129735), (190, 4103788), (247, 3156760), (260, 2998922), (380, 2051894), (494, 1578380), (520, 1499461), (760, 1025947), (988, 789190), (1235, 631352), (1976, 394595), (2470, 315676), (4940, 157838), (9880, 78919)]