20646288

素因数分解:

$2^4\times 3^2\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{269}}^1$

素因数の和:337

約数の個数: 120

約数和(自身を含む): 63980280

約数和(自身を除く): 43333992

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 16, 18, 24, 26, 36, 39, 41, 48, 52, 72, 78, 82, 104, 117, 123, 144, 156, 164, 208, 234, 246, 269, 312, 328, 369, 468, 492, 533, 538, 624, 656, 738, 807, 936, 984, 1066, 1076, 1476, 1599, 1614, 1872, 1968, 2132, 2152, 2421, 2952, 3198, 3228, 3497, 4264, 4304, 4797, 4842, 5904, 6396, 6456, 6994, 8528, 9594, 9684, 10491, 11029, 12792, 12912, 13988, 19188, 19368, 20982, 22058, 25584, 27976, 31473, 33087, 38376, 38736, 41964, 44116, 55952, 62946, 66174, 76752, 83928, 88232, 99261, 125892, 132348, 143377, 167856, 176464, 198522, 251784, 264696, 286754, 397044, 430131, 503568, 529392, 573508, 794088, 860262, 1147016, 1290393, 1588176, 1720524, 2294032, 2580786, 3441048, 5161572, 6882096, 10323144, 20646288]

約数ペア:

[(1, 20646288), (2, 10323144), (3, 6882096), (4, 5161572), (6, 3441048), (8, 2580786), (9, 2294032), (12, 1720524), (13, 1588176), (16, 1290393), (18, 1147016), (24, 860262), (26, 794088), (36, 573508), (39, 529392), (41, 503568), (48, 430131), (52, 397044), (72, 286754), (78, 264696), (82, 251784), (104, 198522), (117, 176464), (123, 167856), (144, 143377), (156, 132348), (164, 125892), (208, 99261), (234, 88232), (246, 83928), (269, 76752), (312, 66174), (328, 62946), (369, 55952), (468, 44116), (492, 41964), (533, 38736), (538, 38376), (624, 33087), (656, 31473), (738, 27976), (807, 25584), (936, 22058), (984, 20982), (1066, 19368), (1076, 19188), (1476, 13988), (1599, 12912), (1614, 12792), (1872, 11029), (1968, 10491), (2132, 9684), (2152, 9594), (2421, 8528), (2952, 6994), (3198, 6456), (3228, 6396), (3497, 5904), (4264, 4842), (4304, 4797)]