18914520

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{163}}^1\times {\mathrm{967}}^1$

素因数の和:1144

約数の個数: 64

約数和(自身を含む): 57150720

約数和(自身を除く): 38236200

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 163, 326, 489, 652, 815, 967, 978, 1304, 1630, 1934, 1956, 2445, 2901, 3260, 3868, 3912, 4835, 4890, 5802, 6520, 7736, 9670, 9780, 11604, 14505, 19340, 19560, 23208, 29010, 38680, 58020, 116040, 157621, 315242, 472863, 630484, 788105, 945726, 1260968, 1576210, 1891452, 2364315, 3152420, 3782904, 4728630, 6304840, 9457260, 18914520]

約数ペア:

[(1, 18914520), (2, 9457260), (3, 6304840), (4, 4728630), (5, 3782904), (6, 3152420), (8, 2364315), (10, 1891452), (12, 1576210), (15, 1260968), (20, 945726), (24, 788105), (30, 630484), (40, 472863), (60, 315242), (120, 157621), (163, 116040), (326, 58020), (489, 38680), (652, 29010), (815, 23208), (967, 19560), (978, 19340), (1304, 14505), (1630, 11604), (1934, 9780), (1956, 9670), (2445, 7736), (2901, 6520), (3260, 5802), (3868, 4890), (3912, 4835)]