19929728

素因数分解:

$2^7\times 7^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{59}}^1$

素因数の和:122

約数の個数: 128

約数和(自身を含む): 51408000

約数和(自身を除く): 31478272

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 29, 32, 52, 56, 58, 59, 64, 91, 104, 112, 116, 118, 128, 182, 203, 208, 224, 232, 236, 364, 377, 406, 413, 416, 448, 464, 472, 728, 754, 767, 812, 826, 832, 896, 928, 944, 1456, 1508, 1534, 1624, 1652, 1664, 1711, 1856, 1888, 2639, 2912, 3016, 3068, 3248, 3304, 3422, 3712, 3776, 5278, 5369, 5824, 6032, 6136, 6496, 6608, 6844, 7552, 10556, 10738, 11648, 11977, 12064, 12272, 12992, 13216, 13688, 21112, 21476, 22243, 23954, 24128, 24544, 25984, 26432, 27376, 42224, 42952, 44486, 47908, 48256, 49088, 52864, 54752, 84448, 85904, 88972, 95816, 98176, 109504, 155701, 168896, 171808, 177944, 191632, 219008, 311402, 337792, 343616, 355888, 383264, 622804, 687232, 711776, 766528, 1245608, 1423552, 1533056, 2491216, 2847104, 4982432, 9964864, 19929728]

約数ペア:

[(1, 19929728), (2, 9964864), (4, 4982432), (7, 2847104), (8, 2491216), (13, 1533056), (14, 1423552), (16, 1245608), (26, 766528), (28, 711776), (29, 687232), (32, 622804), (52, 383264), (56, 355888), (58, 343616), (59, 337792), (64, 311402), (91, 219008), (104, 191632), (112, 177944), (116, 171808), (118, 168896), (128, 155701), (182, 109504), (203, 98176), (208, 95816), (224, 88972), (232, 85904), (236, 84448), (364, 54752), (377, 52864), (406, 49088), (413, 48256), (416, 47908), (448, 44486), (464, 42952), (472, 42224), (728, 27376), (754, 26432), (767, 25984), (812, 24544), (826, 24128), (832, 23954), (896, 22243), (928, 21476), (944, 21112), (1456, 13688), (1508, 13216), (1534, 12992), (1624, 12272), (1652, 12064), (1664, 11977), (1711, 11648), (1856, 10738), (1888, 10556), (2639, 7552), (2912, 6844), (3016, 6608), (3068, 6496), (3248, 6136), (3304, 6032), (3422, 5824), (3712, 5369), (3776, 5278)]