256989480

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^3\times {\mathrm{1609}}^1$

素因数の和:1656

約数の個数: 128

約数和(自身を含む): 848534400

約数和(自身を除く): 591544920

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 20, 22, 24, 30, 33, 40, 44, 55, 60, 66, 88, 110, 120, 121, 132, 165, 220, 242, 264, 330, 363, 440, 484, 605, 660, 726, 968, 1210, 1320, 1331, 1452, 1609, 1815, 2420, 2662, 2904, 3218, 3630, 3993, 4827, 4840, 5324, 6436, 6655, 7260, 7986, 8045, 9654, 10648, 12872, 13310, 14520, 15972, 16090, 17699, 19308, 19965, 24135, 26620, 31944, 32180, 35398, 38616, 39930, 48270, 53097, 53240, 64360, 70796, 79860, 88495, 96540, 106194, 141592, 159720, 176990, 193080, 194689, 212388, 265485, 353980, 389378, 424776, 530970, 584067, 707960, 778756, 973445, 1061940, 1168134, 1557512, 1946890, 2123880, 2141579, 2336268, 2920335, 3893780, 4283158, 4672536, 5840670, 6424737, 7787560, 8566316, 10707895, 11681340, 12849474, 17132632, 21415790, 23362680, 25698948, 32123685, 42831580, 51397896, 64247370, 85663160, 128494740, 256989480]

約数ペア:

[(1, 256989480), (2, 128494740), (3, 85663160), (4, 64247370), (5, 51397896), (6, 42831580), (8, 32123685), (10, 25698948), (11, 23362680), (12, 21415790), (15, 17132632), (20, 12849474), (22, 11681340), (24, 10707895), (30, 8566316), (33, 7787560), (40, 6424737), (44, 5840670), (55, 4672536), (60, 4283158), (66, 3893780), (88, 2920335), (110, 2336268), (120, 2141579), (121, 2123880), (132, 1946890), (165, 1557512), (220, 1168134), (242, 1061940), (264, 973445), (330, 778756), (363, 707960), (440, 584067), (484, 530970), (605, 424776), (660, 389378), (726, 353980), (968, 265485), (1210, 212388), (1320, 194689), (1331, 193080), (1452, 176990), (1609, 159720), (1815, 141592), (2420, 106194), (2662, 96540), (2904, 88495), (3218, 79860), (3630, 70796), (3993, 64360), (4827, 53240), (4840, 53097), (5324, 48270), (6436, 39930), (6655, 38616), (7260, 35398), (7986, 32180), (8045, 31944), (9654, 26620), (10648, 24135), (12872, 19965), (13310, 19308), (14520, 17699), (15972, 16090)]