20530412

素因数分解:

$2^2\times 7^2\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{149}}^1$

素因数の和:223

約数の個数: 72

約数和(自身を含む): 45486000

約数和(自身を除く): 24955588

約数列:

[1, 2, 4, 7, 14, 19, 28, 37, 38, 49, 74, 76, 98, 133, 148, 149, 196, 259, 266, 298, 518, 532, 596, 703, 931, 1036, 1043, 1406, 1813, 1862, 2086, 2812, 2831, 3626, 3724, 4172, 4921, 5513, 5662, 7252, 7301, 9842, 11026, 11324, 14602, 19684, 19817, 22052, 29204, 34447, 38591, 39634, 68894, 77182, 79268, 104747, 137788, 138719, 154364, 209494, 270137, 277438, 418988, 540274, 554876, 733229, 1080548, 1466458, 2932916, 5132603, 10265206, 20530412]

約数ペア:

[(1, 20530412), (2, 10265206), (4, 5132603), (7, 2932916), (14, 1466458), (19, 1080548), (28, 733229), (37, 554876), (38, 540274), (49, 418988), (74, 277438), (76, 270137), (98, 209494), (133, 154364), (148, 138719), (149, 137788), (196, 104747), (259, 79268), (266, 77182), (298, 68894), (518, 39634), (532, 38591), (596, 34447), (703, 29204), (931, 22052), (1036, 19817), (1043, 19684), (1406, 14602), (1813, 11324), (1862, 11026), (2086, 9842), (2812, 7301), (2831, 7252), (3626, 5662), (3724, 5513), (4172, 4921)]