261314980

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{293}}^1\times {\mathrm{2347}}^1$

素因数の和:2668

約数の個数: 48

約数和(自身を含む): 579862080

約数和(自身を除く): 318547100

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 293, 380, 586, 1172, 1465, 2347, 2930, 4694, 5567, 5860, 9388, 11134, 11735, 22268, 23470, 27835, 44593, 46940, 55670, 89186, 111340, 178372, 222965, 445930, 687671, 891860, 1375342, 2750684, 3438355, 6876710, 13065749, 13753420, 26131498, 52262996, 65328745, 130657490, 261314980]

約数ペア:

[(1, 261314980), (2, 130657490), (4, 65328745), (5, 52262996), (10, 26131498), (19, 13753420), (20, 13065749), (38, 6876710), (76, 3438355), (95, 2750684), (190, 1375342), (293, 891860), (380, 687671), (586, 445930), (1172, 222965), (1465, 178372), (2347, 111340), (2930, 89186), (4694, 55670), (5567, 46940), (5860, 44593), (9388, 27835), (11134, 23470), (11735, 22268)]