255938480

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{641}}^1$

素因数の和:715

約数の個数: 160

約数和(自身を含む): 733667328

約数和(自身を除く): 477728848

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 23, 28, 31, 35, 40, 46, 56, 62, 70, 80, 92, 112, 115, 124, 140, 155, 161, 184, 217, 230, 248, 280, 310, 322, 368, 434, 460, 496, 560, 620, 641, 644, 713, 805, 868, 920, 1085, 1240, 1282, 1288, 1426, 1610, 1736, 1840, 2170, 2480, 2564, 2576, 2852, 3205, 3220, 3472, 3565, 4340, 4487, 4991, 5128, 5704, 6410, 6440, 7130, 8680, 8974, 9982, 10256, 11408, 12820, 12880, 14260, 14743, 17360, 17948, 19871, 19964, 22435, 24955, 25640, 28520, 29486, 35896, 39742, 39928, 44870, 49910, 51280, 57040, 58972, 71792, 73715, 79484, 79856, 89740, 99355, 99820, 103201, 117944, 139097, 147430, 158968, 179480, 198710, 199640, 206402, 235888, 278194, 294860, 317936, 358960, 397420, 399280, 412804, 457033, 516005, 556388, 589720, 695485, 794840, 825608, 914066, 1032010, 1112776, 1179440, 1390970, 1589680, 1651216, 1828132, 2064020, 2225552, 2285165, 2781940, 3199231, 3656264, 4128040, 4570330, 5563880, 6398462, 7312528, 8256080, 9140660, 11127760, 12796924, 15996155, 18281320, 25593848, 31992310, 36562640, 51187696, 63984620, 127969240, 255938480]

約数ペア:

[(1, 255938480), (2, 127969240), (4, 63984620), (5, 51187696), (7, 36562640), (8, 31992310), (10, 25593848), (14, 18281320), (16, 15996155), (20, 12796924), (23, 11127760), (28, 9140660), (31, 8256080), (35, 7312528), (40, 6398462), (46, 5563880), (56, 4570330), (62, 4128040), (70, 3656264), (80, 3199231), (92, 2781940), (112, 2285165), (115, 2225552), (124, 2064020), (140, 1828132), (155, 1651216), (161, 1589680), (184, 1390970), (217, 1179440), (230, 1112776), (248, 1032010), (280, 914066), (310, 825608), (322, 794840), (368, 695485), (434, 589720), (460, 556388), (496, 516005), (560, 457033), (620, 412804), (641, 399280), (644, 397420), (713, 358960), (805, 317936), (868, 294860), (920, 278194), (1085, 235888), (1240, 206402), (1282, 199640), (1288, 198710), (1426, 179480), (1610, 158968), (1736, 147430), (1840, 139097), (2170, 117944), (2480, 103201), (2564, 99820), (2576, 99355), (2852, 89740), (3205, 79856), (3220, 79484), (3472, 73715), (3565, 71792), (4340, 58972), (4487, 57040), (4991, 51280), (5128, 49910), (5704, 44870), (6410, 39928), (6440, 39742), (7130, 35896), (8680, 29486), (8974, 28520), (9982, 25640), (10256, 24955), (11408, 22435), (12820, 19964), (12880, 19871), (14260, 17948), (14743, 17360)]