81806978

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{61}}^1\times {\mathrm{1297}}^1$

素因数の和:1418

約数の個数: 32

約数和(自身を含む): 139062528

約数和(自身を除く): 57255550

約数列:

[1, 2, 11, 22, 47, 61, 94, 122, 517, 671, 1034, 1297, 1342, 2594, 2867, 5734, 14267, 28534, 31537, 60959, 63074, 79117, 121918, 158234, 670549, 870287, 1341098, 1740574, 3718499, 7436998, 40903489, 81806978]

約数ペア:

[(1, 81806978), (2, 40903489), (11, 7436998), (22, 3718499), (47, 1740574), (61, 1341098), (94, 870287), (122, 670549), (517, 158234), (671, 121918), (1034, 79117), (1297, 63074), (1342, 60959), (2594, 31537), (2867, 28534), (5734, 14267)]