161758520

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{1811}}^1$

素因数の和:1869

約数の個数: 128

約数和(自身を含む): 469670400

約数和(自身を除く): 307911880

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 20, 22, 28, 29, 35, 40, 44, 55, 56, 58, 70, 77, 88, 110, 116, 140, 145, 154, 203, 220, 232, 280, 290, 308, 319, 385, 406, 440, 580, 616, 638, 770, 812, 1015, 1160, 1276, 1540, 1595, 1624, 1811, 2030, 2233, 2552, 3080, 3190, 3622, 4060, 4466, 6380, 7244, 8120, 8932, 9055, 11165, 12677, 12760, 14488, 17864, 18110, 19921, 22330, 25354, 36220, 39842, 44660, 50708, 52519, 63385, 72440, 79684, 89320, 99605, 101416, 105038, 126770, 139447, 159368, 199210, 210076, 253540, 262595, 278894, 367633, 398420, 420152, 507080, 525190, 557788, 577709, 697235, 735266, 796840, 1050380, 1115576, 1155418, 1394470, 1470532, 1838165, 2100760, 2310836, 2788940, 2888545, 2941064, 3676330, 4043963, 4621672, 5577880, 5777090, 7352660, 8087926, 11554180, 14705320, 16175852, 20219815, 23108360, 32351704, 40439630, 80879260, 161758520]

約数ペア:

[(1, 161758520), (2, 80879260), (4, 40439630), (5, 32351704), (7, 23108360), (8, 20219815), (10, 16175852), (11, 14705320), (14, 11554180), (20, 8087926), (22, 7352660), (28, 5777090), (29, 5577880), (35, 4621672), (40, 4043963), (44, 3676330), (55, 2941064), (56, 2888545), (58, 2788940), (70, 2310836), (77, 2100760), (88, 1838165), (110, 1470532), (116, 1394470), (140, 1155418), (145, 1115576), (154, 1050380), (203, 796840), (220, 735266), (232, 697235), (280, 577709), (290, 557788), (308, 525190), (319, 507080), (385, 420152), (406, 398420), (440, 367633), (580, 278894), (616, 262595), (638, 253540), (770, 210076), (812, 199210), (1015, 159368), (1160, 139447), (1276, 126770), (1540, 105038), (1595, 101416), (1624, 99605), (1811, 89320), (2030, 79684), (2233, 72440), (2552, 63385), (3080, 52519), (3190, 50708), (3622, 44660), (4060, 39842), (4466, 36220), (6380, 25354), (7244, 22330), (8120, 19921), (8932, 18110), (9055, 17864), (11165, 14488), (12677, 12760)]