212867956

素因数分解:

$2^2\times 7^2\times {\mathrm{37}}^1\times {\mathrm{149}}^1\times {\mathrm{197}}^1$

素因数の和:401

約数の個数: 72

約数和(自身を含む): 450311400

約数和(自身を除く): 237443444

約数列:

[1, 2, 4, 7, 14, 28, 37, 49, 74, 98, 148, 149, 196, 197, 259, 298, 394, 518, 596, 788, 1036, 1043, 1379, 1813, 2086, 2758, 3626, 4172, 5513, 5516, 7252, 7289, 7301, 9653, 11026, 14578, 14602, 19306, 22052, 29156, 29204, 29353, 38591, 38612, 51023, 58706, 77182, 102046, 117412, 154364, 204092, 205471, 270137, 357161, 410942, 540274, 714322, 821884, 1080548, 1086061, 1428644, 1438297, 2172122, 2876594, 4344244, 5753188, 7602427, 15204854, 30409708, 53216989, 106433978, 212867956]

約数ペア:

[(1, 212867956), (2, 106433978), (4, 53216989), (7, 30409708), (14, 15204854), (28, 7602427), (37, 5753188), (49, 4344244), (74, 2876594), (98, 2172122), (148, 1438297), (149, 1428644), (196, 1086061), (197, 1080548), (259, 821884), (298, 714322), (394, 540274), (518, 410942), (596, 357161), (788, 270137), (1036, 205471), (1043, 204092), (1379, 154364), (1813, 117412), (2086, 102046), (2758, 77182), (3626, 58706), (4172, 51023), (5513, 38612), (5516, 38591), (7252, 29353), (7289, 29204), (7301, 29156), (9653, 22052), (11026, 19306), (14578, 14602)]