209720588

素因数分解:

$2^2\times 7^2\times {\mathrm{11}}^2\times {\mathrm{37}}^1\times {\mathrm{239}}^1$

素因数の和:316

約数の個数: 108

約数和(自身を含む): 483971040

約数和(自身を除く): 274250452

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 37, 44, 49, 74, 77, 98, 121, 148, 154, 196, 239, 242, 259, 308, 407, 478, 484, 518, 539, 814, 847, 956, 1036, 1078, 1628, 1673, 1694, 1813, 2156, 2629, 2849, 3346, 3388, 3626, 4477, 5258, 5698, 5929, 6692, 7252, 8843, 8954, 10516, 11396, 11711, 11858, 17686, 17908, 18403, 19943, 23422, 23716, 28919, 31339, 35372, 36806, 39886, 46844, 57838, 61901, 62678, 73612, 79772, 97273, 115676, 123802, 125356, 128821, 194546, 202433, 219373, 247604, 257642, 389092, 404866, 433307, 438746, 515284, 680911, 809732, 866614, 877492, 1070003, 1361822, 1417031, 1733228, 2140006, 2723644, 2834062, 4280012, 4766377, 5668124, 7490021, 9532754, 14980042, 19065508, 29960084, 52430147, 104860294, 209720588]

約数ペア:

[(1, 209720588), (2, 104860294), (4, 52430147), (7, 29960084), (11, 19065508), (14, 14980042), (22, 9532754), (28, 7490021), (37, 5668124), (44, 4766377), (49, 4280012), (74, 2834062), (77, 2723644), (98, 2140006), (121, 1733228), (148, 1417031), (154, 1361822), (196, 1070003), (239, 877492), (242, 866614), (259, 809732), (308, 680911), (407, 515284), (478, 438746), (484, 433307), (518, 404866), (539, 389092), (814, 257642), (847, 247604), (956, 219373), (1036, 202433), (1078, 194546), (1628, 128821), (1673, 125356), (1694, 123802), (1813, 115676), (2156, 97273), (2629, 79772), (2849, 73612), (3346, 62678), (3388, 61901), (3626, 57838), (4477, 46844), (5258, 39886), (5698, 36806), (5929, 35372), (6692, 31339), (7252, 28919), (8843, 23716), (8954, 23422), (10516, 19943), (11396, 18403), (11711, 17908), (11858, 17686)]