72172520

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{383}}^1\times {\mathrm{673}}^1$

素因数の和:1074

約数の個数: 64

約数和(自身を含む): 186347520

約数和(自身を除く): 114175000

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 383, 673, 766, 1346, 1532, 1915, 2681, 2692, 3064, 3365, 3830, 4711, 5362, 5384, 6730, 7660, 9422, 10724, 13405, 13460, 15320, 18844, 21448, 23555, 26810, 26920, 37688, 47110, 53620, 94220, 107240, 188440, 257759, 515518, 1031036, 1288795, 1804313, 2062072, 2577590, 3608626, 5155180, 7217252, 9021565, 10310360, 14434504, 18043130, 36086260, 72172520]

約数ペア:

[(1, 72172520), (2, 36086260), (4, 18043130), (5, 14434504), (7, 10310360), (8, 9021565), (10, 7217252), (14, 5155180), (20, 3608626), (28, 2577590), (35, 2062072), (40, 1804313), (56, 1288795), (70, 1031036), (140, 515518), (280, 257759), (383, 188440), (673, 107240), (766, 94220), (1346, 53620), (1532, 47110), (1915, 37688), (2681, 26920), (2692, 26810), (3064, 23555), (3365, 21448), (3830, 18844), (4711, 15320), (5362, 13460), (5384, 13405), (6730, 10724), (7660, 9422)]