27996780

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{191}}^1\times {\mathrm{349}}^1$

素因数の和:559

約数の個数: 96

約数和(自身を含む): 90316800

約数和(自身を除く): 62320020

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 191, 210, 349, 382, 420, 573, 698, 764, 955, 1047, 1146, 1337, 1396, 1745, 1910, 2094, 2292, 2443, 2674, 2865, 3490, 3820, 4011, 4188, 4886, 5235, 5348, 5730, 6685, 6980, 7329, 8022, 9772, 10470, 11460, 12215, 13370, 14658, 16044, 20055, 20940, 24430, 26740, 29316, 36645, 40110, 48860, 66659, 73290, 80220, 133318, 146580, 199977, 266636, 333295, 399954, 466613, 666590, 799908, 933226, 999885, 1333180, 1399839, 1866452, 1999770, 2333065, 2799678, 3999540, 4666130, 5599356, 6999195, 9332260, 13998390, 27996780]

約数ペア:

[(1, 27996780), (2, 13998390), (3, 9332260), (4, 6999195), (5, 5599356), (6, 4666130), (7, 3999540), (10, 2799678), (12, 2333065), (14, 1999770), (15, 1866452), (20, 1399839), (21, 1333180), (28, 999885), (30, 933226), (35, 799908), (42, 666590), (60, 466613), (70, 399954), (84, 333295), (105, 266636), (140, 199977), (191, 146580), (210, 133318), (349, 80220), (382, 73290), (420, 66659), (573, 48860), (698, 40110), (764, 36645), (955, 29316), (1047, 26740), (1146, 24430), (1337, 20940), (1396, 20055), (1745, 16044), (1910, 14658), (2094, 13370), (2292, 12215), (2443, 11460), (2674, 10470), (2865, 9772), (3490, 8022), (3820, 7329), (4011, 6980), (4188, 6685), (4886, 5730), (5235, 5348)]