248802405

素因数分解:

$3^1\times 5^1\times {\mathrm{53}}^1\times {\mathrm{131}}^1\times {\mathrm{2389}}^1$

素因数の和:2581

約数の個数: 32

約数和(自身を含む): 408862080

約数和(自身を除く): 160059675

約数列:

[1, 3, 5, 15, 53, 131, 159, 265, 393, 655, 795, 1965, 2389, 6943, 7167, 11945, 20829, 34715, 35835, 104145, 126617, 312959, 379851, 633085, 938877, 1564795, 1899255, 4694385, 16586827, 49760481, 82934135, 248802405]

約数ペア:

[(1, 248802405), (3, 82934135), (5, 49760481), (15, 16586827), (53, 4694385), (131, 1899255), (159, 1564795), (265, 938877), (393, 633085), (655, 379851), (795, 312959), (1965, 126617), (2389, 104145), (6943, 35835), (7167, 34715), (11945, 20829)]