81973828

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{53}}^1\times {\mathrm{433}}^1$

素因数の和:556

約数の個数: 48

約数和(自身を含む): 157489920

約数和(自身を除く): 75516092

約数列:

[1, 2, 4, 19, 38, 47, 53, 76, 94, 106, 188, 212, 433, 866, 893, 1007, 1732, 1786, 2014, 2491, 3572, 4028, 4982, 8227, 9964, 16454, 20351, 22949, 32908, 40702, 45898, 47329, 81404, 91796, 94658, 189316, 386669, 436031, 773338, 872062, 1078603, 1546676, 1744124, 2157206, 4314412, 20493457, 40986914, 81973828]

約数ペア:

[(1, 81973828), (2, 40986914), (4, 20493457), (19, 4314412), (38, 2157206), (47, 1744124), (53, 1546676), (76, 1078603), (94, 872062), (106, 773338), (188, 436031), (212, 386669), (433, 189316), (866, 94658), (893, 91796), (1007, 81404), (1732, 47329), (1786, 45898), (2014, 40702), (2491, 32908), (3572, 22949), (4028, 20351), (4982, 16454), (8227, 9964)]