391303920

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{232919}}^1$

素因数の和:232942

約数の個数: 80

約数和(自身を含む): 1386339840

約数和(自身を除く): 995035920

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 105, 112, 120, 140, 168, 210, 240, 280, 336, 420, 560, 840, 1680, 232919, 465838, 698757, 931676, 1164595, 1397514, 1630433, 1863352, 2329190, 2795028, 3260866, 3493785, 3726704, 4658380, 4891299, 5590056, 6521732, 6987570, 8152165, 9316760, 9782598, 11180112, 13043464, 13975140, 16304330, 18633520, 19565196, 24456495, 26086928, 27950280, 32608660, 39130392, 48912990, 55900560, 65217320, 78260784, 97825980, 130434640, 195651960, 391303920]

約数ペア:

[(1, 391303920), (2, 195651960), (3, 130434640), (4, 97825980), (5, 78260784), (6, 65217320), (7, 55900560), (8, 48912990), (10, 39130392), (12, 32608660), (14, 27950280), (15, 26086928), (16, 24456495), (20, 19565196), (21, 18633520), (24, 16304330), (28, 13975140), (30, 13043464), (35, 11180112), (40, 9782598), (42, 9316760), (48, 8152165), (56, 6987570), (60, 6521732), (70, 5590056), (80, 4891299), (84, 4658380), (105, 3726704), (112, 3493785), (120, 3260866), (140, 2795028), (168, 2329190), (210, 1863352), (240, 1630433), (280, 1397514), (336, 1164595), (420, 931676), (560, 698757), (840, 465838), (1680, 232919)]