399343672

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{28871}}^1$

素因数の和:28916

約数の個数: 64

約数和(自身を含む): 970099200

約数和(自身を除く): 570755528

約数列:

[1, 2, 4, 7, 8, 13, 14, 19, 26, 28, 38, 52, 56, 76, 91, 104, 133, 152, 182, 247, 266, 364, 494, 532, 728, 988, 1064, 1729, 1976, 3458, 6916, 13832, 28871, 57742, 115484, 202097, 230968, 375323, 404194, 548549, 750646, 808388, 1097098, 1501292, 1616776, 2194196, 2627261, 3002584, 3839843, 4388392, 5254522, 7131137, 7679686, 10509044, 14262274, 15359372, 21018088, 28524548, 30718744, 49917959, 57049096, 99835918, 199671836, 399343672]

約数ペア:

[(1, 399343672), (2, 199671836), (4, 99835918), (7, 57049096), (8, 49917959), (13, 30718744), (14, 28524548), (19, 21018088), (26, 15359372), (28, 14262274), (38, 10509044), (52, 7679686), (56, 7131137), (76, 5254522), (91, 4388392), (104, 3839843), (133, 3002584), (152, 2627261), (182, 2194196), (247, 1616776), (266, 1501292), (364, 1097098), (494, 808388), (532, 750646), (728, 548549), (988, 404194), (1064, 375323), (1729, 230968), (1976, 202097), (3458, 115484), (6916, 57742), (13832, 28871)]