257465404

素因数分解:

$2^2\times 7^3\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{199}}^1$

素因数の和:288

約数の個数: 96

約数和(自身を含む): 564480000

約数和(自身を除く): 307014596

約数列:

[1, 2, 4, 7, 14, 23, 28, 41, 46, 49, 82, 92, 98, 161, 164, 196, 199, 287, 322, 343, 398, 574, 644, 686, 796, 943, 1127, 1148, 1372, 1393, 1886, 2009, 2254, 2786, 3772, 4018, 4508, 4577, 5572, 6601, 7889, 8036, 8159, 9154, 9751, 13202, 14063, 15778, 16318, 18308, 19502, 26404, 28126, 31556, 32039, 32636, 39004, 46207, 56252, 57113, 64078, 68257, 92414, 114226, 128156, 136514, 184828, 187657, 224273, 228452, 273028, 323449, 375314, 399791, 448546, 646898, 750628, 799582, 897092, 1293796, 1313599, 1569911, 1599164, 2627198, 2798537, 3139822, 5254396, 5597074, 6279644, 9195193, 11194148, 18390386, 36780772, 64366351, 128732702, 257465404]

約数ペア:

[(1, 257465404), (2, 128732702), (4, 64366351), (7, 36780772), (14, 18390386), (23, 11194148), (28, 9195193), (41, 6279644), (46, 5597074), (49, 5254396), (82, 3139822), (92, 2798537), (98, 2627198), (161, 1599164), (164, 1569911), (196, 1313599), (199, 1293796), (287, 897092), (322, 799582), (343, 750628), (398, 646898), (574, 448546), (644, 399791), (686, 375314), (796, 323449), (943, 273028), (1127, 228452), (1148, 224273), (1372, 187657), (1393, 184828), (1886, 136514), (2009, 128156), (2254, 114226), (2786, 92414), (3772, 68257), (4018, 64078), (4508, 57113), (4577, 56252), (5572, 46207), (6601, 39004), (7889, 32636), (8036, 32039), (8159, 31556), (9154, 28126), (9751, 26404), (13202, 19502), (14063, 18308), (15778, 16318)]