256468156

素因数分解:

$2^2\times 7^2\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{1129}}^1$

素因数の和:1227

約数の個数: 72

約数和(自身を含む): 559078800

約数和(自身を除く): 302610644

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 49, 61, 76, 98, 122, 133, 196, 244, 266, 427, 532, 854, 931, 1129, 1159, 1708, 1862, 2258, 2318, 2989, 3724, 4516, 4636, 5978, 7903, 8113, 11956, 15806, 16226, 21451, 31612, 32452, 42902, 55321, 56791, 68869, 85804, 110642, 113582, 137738, 150157, 221284, 227164, 275476, 300314, 482083, 600628, 964166, 1051099, 1308511, 1928332, 2102198, 2617022, 3374581, 4204396, 5234044, 6749162, 9159577, 13498324, 18319154, 36638308, 64117039, 128234078, 256468156]

約数ペア:

[(1, 256468156), (2, 128234078), (4, 64117039), (7, 36638308), (14, 18319154), (19, 13498324), (28, 9159577), (38, 6749162), (49, 5234044), (61, 4204396), (76, 3374581), (98, 2617022), (122, 2102198), (133, 1928332), (196, 1308511), (244, 1051099), (266, 964166), (427, 600628), (532, 482083), (854, 300314), (931, 275476), (1129, 227164), (1159, 221284), (1708, 150157), (1862, 137738), (2258, 113582), (2318, 110642), (2989, 85804), (3724, 68869), (4516, 56791), (4636, 55321), (5978, 42902), (7903, 32452), (8113, 31612), (11956, 21451), (15806, 16226)]