257438790

素因数分解:

$2^1\times 3^3\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{107}}^1$

素因数の和:216

約数の個数: 256

約数和(自身を含む): 846028800

約数和(自身を除く): 588590010

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 19, 21, 27, 30, 35, 38, 42, 45, 54, 57, 63, 67, 70, 90, 95, 105, 107, 114, 126, 133, 134, 135, 171, 189, 190, 201, 210, 214, 266, 270, 285, 315, 321, 335, 342, 378, 399, 402, 469, 513, 535, 570, 603, 630, 642, 665, 670, 749, 798, 855, 938, 945, 963, 1005, 1026, 1070, 1197, 1206, 1273, 1330, 1407, 1498, 1605, 1710, 1809, 1890, 1926, 1995, 2010, 2033, 2247, 2345, 2394, 2546, 2565, 2814, 2889, 3015, 3210, 3591, 3618, 3745, 3819, 3990, 4066, 4221, 4494, 4690, 4815, 5130, 5778, 5985, 6030, 6099, 6365, 6741, 7035, 7169, 7182, 7490, 7638, 8442, 8911, 9045, 9630, 10165, 11235, 11457, 11970, 12198, 12663, 12730, 13482, 14070, 14231, 14338, 14445, 17822, 17955, 18090, 18297, 19095, 20223, 20330, 21105, 21507, 22470, 22914, 25326, 26733, 28462, 28890, 30495, 33705, 34371, 35845, 35910, 36594, 38190, 40446, 42210, 42693, 43014, 44555, 50183, 53466, 54891, 57285, 60990, 63315, 64521, 67410, 68742, 71155, 71690, 80199, 85386, 89110, 91485, 100366, 101115, 107535, 109782, 114570, 126630, 128079, 129042, 133665, 136211, 142310, 150549, 160398, 171855, 182970, 193563, 202230, 213465, 215070, 240597, 250915, 256158, 267330, 272422, 274455, 301098, 322605, 343710, 384237, 387126, 400995, 408633, 426930, 451647, 481194, 501830, 548910, 640395, 645210, 681055, 752745, 768474, 801990, 817266, 903294, 953477, 967815, 1202985, 1225899, 1280790, 1354941, 1362110, 1505490, 1906954, 1921185, 1935630, 2043165, 2258235, 2405970, 2451798, 2709882, 2860431, 3677697, 3842370, 4086330, 4516470, 4767385, 5720862, 6129495, 6774705, 7355394, 8581293, 9534770, 12258990, 13549410, 14302155, 17162586, 18388485, 25743879, 28604310, 36776970, 42906465, 51487758, 85812930, 128719395, 257438790]

約数ペア:

[(1, 257438790), (2, 128719395), (3, 85812930), (5, 51487758), (6, 42906465), (7, 36776970), (9, 28604310), (10, 25743879), (14, 18388485), (15, 17162586), (18, 14302155), (19, 13549410), (21, 12258990), (27, 9534770), (30, 8581293), (35, 7355394), (38, 6774705), (42, 6129495), (45, 5720862), (54, 4767385), (57, 4516470), (63, 4086330), (67, 3842370), (70, 3677697), (90, 2860431), (95, 2709882), (105, 2451798), (107, 2405970), (114, 2258235), (126, 2043165), (133, 1935630), (134, 1921185), (135, 1906954), (171, 1505490), (189, 1362110), (190, 1354941), (201, 1280790), (210, 1225899), (214, 1202985), (266, 967815), (270, 953477), (285, 903294), (315, 817266), (321, 801990), (335, 768474), (342, 752745), (378, 681055), (399, 645210), (402, 640395), (469, 548910), (513, 501830), (535, 481194), (570, 451647), (603, 426930), (630, 408633), (642, 400995), (665, 387126), (670, 384237), (749, 343710), (798, 322605), (855, 301098), (938, 274455), (945, 272422), (963, 267330), (1005, 256158), (1026, 250915), (1070, 240597), (1197, 215070), (1206, 213465), (1273, 202230), (1330, 193563), (1407, 182970), (1498, 171855), (1605, 160398), (1710, 150549), (1809, 142310), (1890, 136211), (1926, 133665), (1995, 129042), (2010, 128079), (2033, 126630), (2247, 114570), (2345, 109782), (2394, 107535), (2546, 101115), (2565, 100366), (2814, 91485), (2889, 89110), (3015, 85386), (3210, 80199), (3591, 71690), (3618, 71155), (3745, 68742), (3819, 67410), (3990, 64521), (4066, 63315), (4221, 60990), (4494, 57285), (4690, 54891), (4815, 53466), (5130, 50183), (5778, 44555), (5985, 43014), (6030, 42693), (6099, 42210), (6365, 40446), (6741, 38190), (7035, 36594), (7169, 35910), (7182, 35845), (7490, 34371), (7638, 33705), (8442, 30495), (8911, 28890), (9045, 28462), (9630, 26733), (10165, 25326), (11235, 22914), (11457, 22470), (11970, 21507), (12198, 21105), (12663, 20330), (12730, 20223), (13482, 19095), (14070, 18297), (14231, 18090), (14338, 17955), (14445, 17822)]