20081460

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{137}}^1\times {\mathrm{349}}^1$

素因数の和:505

約数の個数: 96

約数和(自身を含む): 64915200

約数和(自身を除く): 44833740

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 137, 140, 210, 274, 349, 411, 420, 548, 685, 698, 822, 959, 1047, 1370, 1396, 1644, 1745, 1918, 2055, 2094, 2443, 2740, 2877, 3490, 3836, 4110, 4188, 4795, 4886, 5235, 5754, 6980, 7329, 8220, 9590, 9772, 10470, 11508, 12215, 14385, 14658, 19180, 20940, 24430, 28770, 29316, 36645, 47813, 48860, 57540, 73290, 95626, 143439, 146580, 191252, 239065, 286878, 334691, 478130, 573756, 669382, 717195, 956260, 1004073, 1338764, 1434390, 1673455, 2008146, 2868780, 3346910, 4016292, 5020365, 6693820, 10040730, 20081460]

約数ペア:

[(1, 20081460), (2, 10040730), (3, 6693820), (4, 5020365), (5, 4016292), (6, 3346910), (7, 2868780), (10, 2008146), (12, 1673455), (14, 1434390), (15, 1338764), (20, 1004073), (21, 956260), (28, 717195), (30, 669382), (35, 573756), (42, 478130), (60, 334691), (70, 286878), (84, 239065), (105, 191252), (137, 146580), (140, 143439), (210, 95626), (274, 73290), (349, 57540), (411, 48860), (420, 47813), (548, 36645), (685, 29316), (698, 28770), (822, 24430), (959, 20940), (1047, 19180), (1370, 14658), (1396, 14385), (1644, 12215), (1745, 11508), (1918, 10470), (2055, 9772), (2094, 9590), (2443, 8220), (2740, 7329), (2877, 6980), (3490, 5754), (3836, 5235), (4110, 4886), (4188, 4795)]