261567414

素因数分解:

$2^1\times 3^3\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{59}}^1\times {\mathrm{149}}^1$

素因数の和:267

約数の個数: 128

約数和(自身を含む): 648000000

約数和(自身を除く): 386432586

約数列:

[1, 2, 3, 6, 9, 18, 19, 27, 29, 38, 54, 57, 58, 59, 87, 114, 118, 149, 171, 174, 177, 261, 298, 342, 354, 447, 513, 522, 531, 551, 783, 894, 1026, 1062, 1102, 1121, 1341, 1566, 1593, 1653, 1711, 2242, 2682, 2831, 3186, 3306, 3363, 3422, 4023, 4321, 4959, 5133, 5662, 6726, 8046, 8493, 8642, 8791, 9918, 10089, 10266, 12963, 14877, 15399, 16986, 17582, 20178, 25479, 25926, 26373, 29754, 30267, 30798, 32509, 38889, 46197, 50958, 52746, 60534, 65018, 76437, 77778, 79119, 82099, 92394, 97527, 116667, 152874, 158238, 164198, 167029, 195054, 233334, 237357, 246297, 254939, 292581, 334058, 474714, 492594, 501087, 509878, 585162, 738891, 764817, 877743, 1002174, 1477782, 1503261, 1529634, 1755486, 2216673, 2294451, 3006522, 4433346, 4509783, 4588902, 4843841, 6883353, 9019566, 9687682, 13766706, 14531523, 29063046, 43594569, 87189138, 130783707, 261567414]

約数ペア:

[(1, 261567414), (2, 130783707), (3, 87189138), (6, 43594569), (9, 29063046), (18, 14531523), (19, 13766706), (27, 9687682), (29, 9019566), (38, 6883353), (54, 4843841), (57, 4588902), (58, 4509783), (59, 4433346), (87, 3006522), (114, 2294451), (118, 2216673), (149, 1755486), (171, 1529634), (174, 1503261), (177, 1477782), (261, 1002174), (298, 877743), (342, 764817), (354, 738891), (447, 585162), (513, 509878), (522, 501087), (531, 492594), (551, 474714), (783, 334058), (894, 292581), (1026, 254939), (1062, 246297), (1102, 237357), (1121, 233334), (1341, 195054), (1566, 167029), (1593, 164198), (1653, 158238), (1711, 152874), (2242, 116667), (2682, 97527), (2831, 92394), (3186, 82099), (3306, 79119), (3363, 77778), (3422, 76437), (4023, 65018), (4321, 60534), (4959, 52746), (5133, 50958), (5662, 46197), (6726, 38889), (8046, 32509), (8493, 30798), (8642, 30267), (8791, 29754), (9918, 26373), (10089, 25926), (10266, 25479), (12963, 20178), (14877, 17582), (15399, 16986)]