20181279978

素因数分解:

$2^1\times 3^3\times {\mathrm{67}}^1\times {\mathrm{239}}^1\times {\mathrm{23339}}^1$

素因数の和:23656

約数の個数: 64

約数和(自身を含む): 45709056000

約数和(自身を除く): 25527776022

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 67, 134, 201, 239, 402, 478, 603, 717, 1206, 1434, 1809, 2151, 3618, 4302, 6453, 12906, 16013, 23339, 32026, 46678, 48039, 70017, 96078, 140034, 144117, 210051, 288234, 420102, 432351, 630153, 864702, 1260306, 1563713, 3127426, 4691139, 5578021, 9382278, 11156042, 14073417, 16734063, 28146834, 33468126, 42220251, 50202189, 84440502, 100404378, 150606567, 301213134, 373727407, 747454814, 1121182221, 2242364442, 3363546663, 6727093326, 10090639989, 20181279978]

約数ペア:

[(1, 20181279978), (2, 10090639989), (3, 6727093326), (6, 3363546663), (9, 2242364442), (18, 1121182221), (27, 747454814), (54, 373727407), (67, 301213134), (134, 150606567), (201, 100404378), (239, 84440502), (402, 50202189), (478, 42220251), (603, 33468126), (717, 28146834), (1206, 16734063), (1434, 14073417), (1809, 11156042), (2151, 9382278), (3618, 5578021), (4302, 4691139), (6453, 3127426), (12906, 1563713), (16013, 1260306), (23339, 864702), (32026, 630153), (46678, 432351), (48039, 420102), (70017, 288234), (96078, 210051), (140034, 144117)]