51712920

素因数分解:

$2^3\times 3^2\times 5^1\times 7^1\times {\mathrm{20521}}^1$

素因数の和:20545

約数の個数: 96

約数和(自身を含む): 192085920

約数和(自身を除く): 140373000

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 56, 60, 63, 70, 72, 84, 90, 105, 120, 126, 140, 168, 180, 210, 252, 280, 315, 360, 420, 504, 630, 840, 1260, 2520, 20521, 41042, 61563, 82084, 102605, 123126, 143647, 164168, 184689, 205210, 246252, 287294, 307815, 369378, 410420, 430941, 492504, 574588, 615630, 718235, 738756, 820840, 861882, 923445, 1149176, 1231260, 1292823, 1436470, 1477512, 1723764, 1846890, 2154705, 2462520, 2585646, 2872940, 3447528, 3693780, 4309410, 5171292, 5745880, 6464115, 7387560, 8618820, 10342584, 12928230, 17237640, 25856460, 51712920]

約数ペア:

[(1, 51712920), (2, 25856460), (3, 17237640), (4, 12928230), (5, 10342584), (6, 8618820), (7, 7387560), (8, 6464115), (9, 5745880), (10, 5171292), (12, 4309410), (14, 3693780), (15, 3447528), (18, 2872940), (20, 2585646), (21, 2462520), (24, 2154705), (28, 1846890), (30, 1723764), (35, 1477512), (36, 1436470), (40, 1292823), (42, 1231260), (45, 1149176), (56, 923445), (60, 861882), (63, 820840), (70, 738756), (72, 718235), (84, 615630), (90, 574588), (105, 492504), (120, 430941), (126, 410420), (140, 369378), (168, 307815), (180, 287294), (210, 246252), (252, 205210), (280, 184689), (315, 164168), (360, 143647), (420, 123126), (504, 102605), (630, 82084), (840, 61563), (1260, 41042), (2520, 20521)]