127188640

素因数分解:

$2^5\times 5^1\times {\mathrm{491}}^1\times {\mathrm{1619}}^1$

素因数の和:2125

約数の個数: 48

約数和(自身を含む): 301281120

約数和(自身を除く): 174092480

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 491, 982, 1619, 1964, 2455, 3238, 3928, 4910, 6476, 7856, 8095, 9820, 12952, 15712, 16190, 19640, 25904, 32380, 39280, 51808, 64760, 78560, 129520, 259040, 794929, 1589858, 3179716, 3974645, 6359432, 7949290, 12718864, 15898580, 25437728, 31797160, 63594320, 127188640]

約数ペア:

[(1, 127188640), (2, 63594320), (4, 31797160), (5, 25437728), (8, 15898580), (10, 12718864), (16, 7949290), (20, 6359432), (32, 3974645), (40, 3179716), (80, 1589858), (160, 794929), (491, 259040), (982, 129520), (1619, 78560), (1964, 64760), (2455, 51808), (3238, 39280), (3928, 32380), (4910, 25904), (6476, 19640), (7856, 16190), (8095, 15712), (9820, 12952)]