321689984

素因数分解:

$2^7\times 7^1\times {\mathrm{11}}^1\times {\mathrm{127}}^1\times {\mathrm{257}}^1$

素因数の和:416

約数の個数: 128

約数和(自身を含む): 808427520

約数和(自身を除く): 486737536

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 32, 44, 56, 64, 77, 88, 112, 127, 128, 154, 176, 224, 254, 257, 308, 352, 448, 508, 514, 616, 704, 889, 896, 1016, 1028, 1232, 1397, 1408, 1778, 1799, 2032, 2056, 2464, 2794, 2827, 3556, 3598, 4064, 4112, 4928, 5588, 5654, 7112, 7196, 8128, 8224, 9779, 9856, 11176, 11308, 14224, 14392, 16256, 16448, 19558, 19789, 22352, 22616, 28448, 28784, 32639, 32896, 39116, 39578, 44704, 45232, 56896, 57568, 65278, 78232, 79156, 89408, 90464, 113792, 115136, 130556, 156464, 158312, 178816, 180928, 228473, 230272, 261112, 312928, 316624, 359029, 361856, 456946, 522224, 625856, 633248, 718058, 913892, 1044448, 1251712, 1266496, 1436116, 1827784, 2088896, 2513203, 2532992, 2872232, 3655568, 4177792, 5026406, 5744464, 7311136, 10052812, 11488928, 14622272, 20105624, 22977856, 29244544, 40211248, 45955712, 80422496, 160844992, 321689984]

約数ペア:

[(1, 321689984), (2, 160844992), (4, 80422496), (7, 45955712), (8, 40211248), (11, 29244544), (14, 22977856), (16, 20105624), (22, 14622272), (28, 11488928), (32, 10052812), (44, 7311136), (56, 5744464), (64, 5026406), (77, 4177792), (88, 3655568), (112, 2872232), (127, 2532992), (128, 2513203), (154, 2088896), (176, 1827784), (224, 1436116), (254, 1266496), (257, 1251712), (308, 1044448), (352, 913892), (448, 718058), (508, 633248), (514, 625856), (616, 522224), (704, 456946), (889, 361856), (896, 359029), (1016, 316624), (1028, 312928), (1232, 261112), (1397, 230272), (1408, 228473), (1778, 180928), (1799, 178816), (2032, 158312), (2056, 156464), (2464, 130556), (2794, 115136), (2827, 113792), (3556, 90464), (3598, 89408), (4064, 79156), (4112, 78232), (4928, 65278), (5588, 57568), (5654, 56896), (7112, 45232), (7196, 44704), (8128, 39578), (8224, 39116), (9779, 32896), (9856, 32639), (11176, 28784), (11308, 28448), (14224, 22616), (14392, 22352), (16256, 19789), (16448, 19558)]