1809780

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{139}}^1$

素因数の和:189

約数の個数: 96

約数和(自身を含む): 6021120

約数和(自身を除く): 4211340

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 31, 35, 42, 60, 62, 70, 84, 93, 105, 124, 139, 140, 155, 186, 210, 217, 278, 310, 372, 417, 420, 434, 465, 556, 620, 651, 695, 834, 868, 930, 973, 1085, 1302, 1390, 1668, 1860, 1946, 2085, 2170, 2604, 2780, 2919, 3255, 3892, 4170, 4309, 4340, 4865, 5838, 6510, 8340, 8618, 9730, 11676, 12927, 13020, 14595, 17236, 19460, 21545, 25854, 29190, 30163, 43090, 51708, 58380, 60326, 64635, 86180, 90489, 120652, 129270, 150815, 180978, 258540, 301630, 361956, 452445, 603260, 904890, 1809780]

約数ペア:

[(1, 1809780), (2, 904890), (3, 603260), (4, 452445), (5, 361956), (6, 301630), (7, 258540), (10, 180978), (12, 150815), (14, 129270), (15, 120652), (20, 90489), (21, 86180), (28, 64635), (30, 60326), (31, 58380), (35, 51708), (42, 43090), (60, 30163), (62, 29190), (70, 25854), (84, 21545), (93, 19460), (105, 17236), (124, 14595), (139, 13020), (140, 12927), (155, 11676), (186, 9730), (210, 8618), (217, 8340), (278, 6510), (310, 5838), (372, 4865), (417, 4340), (420, 4309), (434, 4170), (465, 3892), (556, 3255), (620, 2919), (651, 2780), (695, 2604), (834, 2170), (868, 2085), (930, 1946), (973, 1860), (1085, 1668), (1302, 1390)]