1553580

素因数分解:

$2^2\times 3^4\times 5^1\times 7^1\times {\mathrm{137}}^1$

素因数の和:165

約数の個数: 120

約数和(自身を含む): 5610528

約数和(自身を除く): 4056948

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 27, 28, 30, 35, 36, 42, 45, 54, 60, 63, 70, 81, 84, 90, 105, 108, 126, 135, 137, 140, 162, 180, 189, 210, 252, 270, 274, 315, 324, 378, 405, 411, 420, 540, 548, 567, 630, 685, 756, 810, 822, 945, 959, 1134, 1233, 1260, 1370, 1620, 1644, 1890, 1918, 2055, 2268, 2466, 2740, 2835, 2877, 3699, 3780, 3836, 4110, 4795, 4932, 5670, 5754, 6165, 7398, 8220, 8631, 9590, 11097, 11340, 11508, 12330, 14385, 14796, 17262, 18495, 19180, 22194, 24660, 25893, 28770, 34524, 36990, 43155, 44388, 51786, 55485, 57540, 73980, 77679, 86310, 103572, 110970, 129465, 155358, 172620, 221940, 258930, 310716, 388395, 517860, 776790, 1553580]

約数ペア:

[(1, 1553580), (2, 776790), (3, 517860), (4, 388395), (5, 310716), (6, 258930), (7, 221940), (9, 172620), (10, 155358), (12, 129465), (14, 110970), (15, 103572), (18, 86310), (20, 77679), (21, 73980), (27, 57540), (28, 55485), (30, 51786), (35, 44388), (36, 43155), (42, 36990), (45, 34524), (54, 28770), (60, 25893), (63, 24660), (70, 22194), (81, 19180), (84, 18495), (90, 17262), (105, 14796), (108, 14385), (126, 12330), (135, 11508), (137, 11340), (140, 11097), (162, 9590), (180, 8631), (189, 8220), (210, 7398), (252, 6165), (270, 5754), (274, 5670), (315, 4932), (324, 4795), (378, 4110), (405, 3836), (411, 3780), (420, 3699), (540, 2877), (548, 2835), (567, 2740), (630, 2466), (685, 2268), (756, 2055), (810, 1918), (822, 1890), (945, 1644), (959, 1620), (1134, 1370), (1233, 1260)]