678480

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{257}}^1$

素因数の和:284

約数の個数: 80

約数和(自身を含む): 2303424

約数和(自身を除く): 1624944

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 16, 20, 22, 24, 30, 33, 40, 44, 48, 55, 60, 66, 80, 88, 110, 120, 132, 165, 176, 220, 240, 257, 264, 330, 440, 514, 528, 660, 771, 880, 1028, 1285, 1320, 1542, 2056, 2570, 2640, 2827, 3084, 3855, 4112, 5140, 5654, 6168, 7710, 8481, 10280, 11308, 12336, 14135, 15420, 16962, 20560, 22616, 28270, 30840, 33924, 42405, 45232, 56540, 61680, 67848, 84810, 113080, 135696, 169620, 226160, 339240, 678480]

約数ペア:

[(1, 678480), (2, 339240), (3, 226160), (4, 169620), (5, 135696), (6, 113080), (8, 84810), (10, 67848), (11, 61680), (12, 56540), (15, 45232), (16, 42405), (20, 33924), (22, 30840), (24, 28270), (30, 22616), (33, 20560), (40, 16962), (44, 15420), (48, 14135), (55, 12336), (60, 11308), (66, 10280), (80, 8481), (88, 7710), (110, 6168), (120, 5654), (132, 5140), (165, 4112), (176, 3855), (220, 3084), (240, 2827), (257, 2640), (264, 2570), (330, 2056), (440, 1542), (514, 1320), (528, 1285), (660, 1028), (771, 880)]