20786488576

素因数分解:

$2^8\times 7^1\times {\mathrm{1283}}^1\times {\mathrm{9041}}^1$

素因数の和:10347

約数の個数: 72

約数和(自身を含む): 47461385664

約数和(自身を除く): 26674897088

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 112, 128, 224, 256, 448, 896, 1283, 1792, 2566, 5132, 8981, 9041, 10264, 17962, 18082, 20528, 35924, 36164, 41056, 63287, 71848, 72328, 82112, 126574, 143696, 144656, 164224, 253148, 287392, 289312, 328448, 506296, 574784, 578624, 1012592, 1149568, 1157248, 2025184, 2299136, 2314496, 4050368, 8100736, 11599603, 16201472, 23199206, 46398412, 81197221, 92796824, 162394442, 185593648, 324788884, 371187296, 649577768, 742374592, 1299155536, 1484749184, 2598311072, 2969498368, 5196622144, 10393244288, 20786488576]

約数ペア:

[(1, 20786488576), (2, 10393244288), (4, 5196622144), (7, 2969498368), (8, 2598311072), (14, 1484749184), (16, 1299155536), (28, 742374592), (32, 649577768), (56, 371187296), (64, 324788884), (112, 185593648), (128, 162394442), (224, 92796824), (256, 81197221), (448, 46398412), (896, 23199206), (1283, 16201472), (1792, 11599603), (2566, 8100736), (5132, 4050368), (8981, 2314496), (9041, 2299136), (10264, 2025184), (17962, 1157248), (18082, 1149568), (20528, 1012592), (35924, 578624), (36164, 574784), (41056, 506296), (63287, 328448), (71848, 289312), (72328, 287392), (82112, 253148), (126574, 164224), (143696, 144656)]