278311335

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{109}}^1$

素因数の和:201

約数の個数: 96

約数和(自身を含む): 518707200

約数和(自身を除く): 240395865

約数列:

[1, 3, 5, 15, 17, 19, 31, 51, 57, 85, 93, 95, 109, 155, 255, 285, 289, 323, 327, 465, 527, 545, 589, 867, 969, 1445, 1581, 1615, 1635, 1767, 1853, 2071, 2635, 2945, 3379, 4335, 4845, 5491, 5559, 6213, 7905, 8835, 8959, 9265, 10013, 10137, 10355, 16473, 16895, 26877, 27455, 27795, 30039, 31065, 31501, 35207, 44795, 50065, 50685, 57443, 64201, 82365, 94503, 105621, 134385, 150195, 157505, 170221, 172329, 176035, 192603, 287215, 321005, 472515, 510663, 528105, 598519, 851105, 861645, 963015, 976531, 1091417, 1795557, 2553315, 2929593, 2992595, 3274251, 4882655, 5457085, 8977785, 14647965, 16371255, 18554089, 55662267, 92770445, 278311335]

約数ペア:

[(1, 278311335), (3, 92770445), (5, 55662267), (15, 18554089), (17, 16371255), (19, 14647965), (31, 8977785), (51, 5457085), (57, 4882655), (85, 3274251), (93, 2992595), (95, 2929593), (109, 2553315), (155, 1795557), (255, 1091417), (285, 976531), (289, 963015), (323, 861645), (327, 851105), (465, 598519), (527, 528105), (545, 510663), (589, 472515), (867, 321005), (969, 287215), (1445, 192603), (1581, 176035), (1615, 172329), (1635, 170221), (1767, 157505), (1853, 150195), (2071, 134385), (2635, 105621), (2945, 94503), (3379, 82365), (4335, 64201), (4845, 57443), (5491, 50685), (5559, 50065), (6213, 44795), (7905, 35207), (8835, 31501), (8959, 31065), (9265, 30039), (10013, 27795), (10137, 27455), (10355, 26877), (16473, 16895)]