81337316

素因数分解:

$2^2\times {\mathrm{17}}^2\times {\mathrm{71}}^1\times {\mathrm{991}}^1$

素因数の和:1100

約数の個数: 36

約数和(自身を含む): 153490176

約数和(自身を除く): 72152860

約数列:

[1, 2, 4, 17, 34, 68, 71, 142, 284, 289, 578, 991, 1156, 1207, 1982, 2414, 3964, 4828, 16847, 20519, 33694, 41038, 67388, 70361, 82076, 140722, 281444, 286399, 572798, 1145596, 1196137, 2392274, 4784548, 20334329, 40668658, 81337316]

約数ペア:

[(1, 81337316), (2, 40668658), (4, 20334329), (17, 4784548), (34, 2392274), (68, 1196137), (71, 1145596), (142, 572798), (284, 286399), (289, 281444), (578, 140722), (991, 82076), (1156, 70361), (1207, 67388), (1982, 41038), (2414, 33694), (3964, 20519), (4828, 16847)]