78239720

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{7919}}^1$

素因数の和:7962

約数の個数: 64

約数和(自身を含む): 199584000

約数和(自身を除く): 121344280

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, 7919, 9880, 15838, 31676, 39595, 63352, 79190, 102947, 150461, 158380, 205894, 300922, 316760, 411788, 514735, 601844, 752305, 823576, 1029470, 1203688, 1504610, 1955993, 2058940, 3009220, 3911986, 4117880, 6018440, 7823972, 9779965, 15647944, 19559930, 39119860, 78239720]

約数ペア:

[(1, 78239720), (2, 39119860), (4, 19559930), (5, 15647944), (8, 9779965), (10, 7823972), (13, 6018440), (19, 4117880), (20, 3911986), (26, 3009220), (38, 2058940), (40, 1955993), (52, 1504610), (65, 1203688), (76, 1029470), (95, 823576), (104, 752305), (130, 601844), (152, 514735), (190, 411788), (247, 316760), (260, 300922), (380, 205894), (494, 158380), (520, 150461), (760, 102947), (988, 79190), (1235, 63352), (1976, 39595), (2470, 31676), (4940, 15838), (7919, 9880)]