20508780616

素因数分解:

$2^3\times {\mathrm{37}}^1\times {\mathrm{97}}^1\times {\mathrm{193}}^1\times {\mathrm{3701}}^1$

素因数の和:4034

約数の個数: 64

約数和(自身を含む): 40117981680

約数和(自身を除く): 19609201064

約数列:

[1, 2, 4, 8, 37, 74, 97, 148, 193, 194, 296, 386, 388, 772, 776, 1544, 3589, 3701, 7141, 7178, 7402, 14282, 14356, 14804, 18721, 28564, 28712, 29608, 37442, 57128, 74884, 136937, 149768, 273874, 358997, 547748, 692677, 714293, 717994, 1095496, 1385354, 1428586, 1435988, 2770708, 2857172, 2871976, 5541416, 5714344, 13282889, 26428841, 26565778, 52857682, 53131556, 69286421, 105715364, 106263112, 138572842, 211430728, 277145684, 554291368, 2563597577, 5127195154, 10254390308, 20508780616]

約数ペア:

[(1, 20508780616), (2, 10254390308), (4, 5127195154), (8, 2563597577), (37, 554291368), (74, 277145684), (97, 211430728), (148, 138572842), (193, 106263112), (194, 105715364), (296, 69286421), (386, 53131556), (388, 52857682), (772, 26565778), (776, 26428841), (1544, 13282889), (3589, 5714344), (3701, 5541416), (7141, 2871976), (7178, 2857172), (7402, 2770708), (14282, 1435988), (14356, 1428586), (14804, 1385354), (18721, 1095496), (28564, 717994), (28712, 714293), (29608, 692677), (37442, 547748), (57128, 358997), (74884, 273874), (136937, 149768)]