279910904

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{157}}^1$

素因数の和:293

約数の個数: 128

約数和(自身を含む): 679526400

約数和(自身を除く): 399615496

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 31, 52, 56, 62, 79, 91, 104, 124, 157, 158, 182, 217, 248, 314, 316, 364, 403, 434, 553, 628, 632, 728, 806, 868, 1027, 1099, 1106, 1256, 1612, 1736, 2041, 2054, 2198, 2212, 2449, 2821, 3224, 4082, 4108, 4396, 4424, 4867, 4898, 5642, 7189, 8164, 8216, 8792, 9734, 9796, 11284, 12403, 14287, 14378, 16328, 17143, 19468, 19592, 22568, 24806, 28574, 28756, 31837, 34069, 34286, 38936, 49612, 57148, 57512, 63271, 63674, 68138, 68572, 86821, 99224, 114296, 126542, 127348, 136276, 137144, 161239, 173642, 222859, 253084, 254696, 272552, 322478, 347284, 384493, 442897, 445718, 506168, 644956, 694568, 768986, 885794, 891436, 1128673, 1289912, 1537972, 1771588, 1782872, 2257346, 2691451, 3075944, 3543176, 4514692, 4998409, 5382902, 9029384, 9996818, 10765804, 19993636, 21531608, 34988863, 39987272, 69977726, 139955452, 279910904]

約数ペア:

[(1, 279910904), (2, 139955452), (4, 69977726), (7, 39987272), (8, 34988863), (13, 21531608), (14, 19993636), (26, 10765804), (28, 9996818), (31, 9029384), (52, 5382902), (56, 4998409), (62, 4514692), (79, 3543176), (91, 3075944), (104, 2691451), (124, 2257346), (157, 1782872), (158, 1771588), (182, 1537972), (217, 1289912), (248, 1128673), (314, 891436), (316, 885794), (364, 768986), (403, 694568), (434, 644956), (553, 506168), (628, 445718), (632, 442897), (728, 384493), (806, 347284), (868, 322478), (1027, 272552), (1099, 254696), (1106, 253084), (1256, 222859), (1612, 173642), (1736, 161239), (2041, 137144), (2054, 136276), (2198, 127348), (2212, 126542), (2449, 114296), (2821, 99224), (3224, 86821), (4082, 68572), (4108, 68138), (4396, 63674), (4424, 63271), (4867, 57512), (4898, 57148), (5642, 49612), (7189, 38936), (8164, 34286), (8216, 34069), (8792, 31837), (9734, 28756), (9796, 28574), (11284, 24806), (12403, 22568), (14287, 19592), (14378, 19468), (16328, 17143)]