279895280

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{701}}^1$

素因数の和:775

約数の個数: 160

約数和(自身を含む): 802234368

約数和(自身を除く): 522339088

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, 644, 701, 713, 805, 868, 920, 1085, 1240, 1288, 1402, 1426, 1610, 1736, 1840, 2170, 2480, 2576, 2804, 2852, 3220, 3472, 3505, 3565, 4340, 4907, 4991, 5608, 5704, 6440, 7010, 7130, 8680, 9814, 9982, 11216, 11408, 12880, 14020, 14260, 16123, 17360, 19628, 19964, 21731, 24535, 24955, 28040, 28520, 32246, 39256, 39928, 43462, 49070, 49910, 56080, 57040, 64492, 78512, 79856, 80615, 86924, 98140, 99820, 108655, 112861, 128984, 152117, 161230, 173848, 196280, 199640, 217310, 225722, 257968, 304234, 322460, 347696, 392560, 399280, 434620, 451444, 499813, 564305, 608468, 644920, 760585, 869240, 902888, 999626, 1128610, 1216936, 1289840, 1521170, 1738480, 1805776, 1999252, 2257220, 2433872, 2499065, 3042340, 3498691, 3998504, 4514440, 4998130, 6084680, 6997382, 7997008, 9028880, 9996260, 12169360, 13994764, 17493455, 19992520, 27989528, 34986910, 39985040, 55979056, 69973820, 139947640, 279895280]

約数ペア:

[(1, 279895280), (2, 139947640), (4, 69973820), (5, 55979056), (7, 39985040), (8, 34986910), (10, 27989528), (14, 19992520), (16, 17493455), (20, 13994764), (23, 12169360), (28, 9996260), (31, 9028880), (35, 7997008), (40, 6997382), (46, 6084680), (56, 4998130), (62, 4514440), (70, 3998504), (80, 3498691), (92, 3042340), (112, 2499065), (115, 2433872), (124, 2257220), (140, 1999252), (155, 1805776), (161, 1738480), (184, 1521170), (217, 1289840), (230, 1216936), (248, 1128610), (280, 999626), (310, 902888), (322, 869240), (368, 760585), (434, 644920), (460, 608468), (496, 564305), (560, 499813), (620, 451444), (644, 434620), (701, 399280), (713, 392560), (805, 347696), (868, 322460), (920, 304234), (1085, 257968), (1240, 225722), (1288, 217310), (1402, 199640), (1426, 196280), (1610, 173848), (1736, 161230), (1840, 152117), (2170, 128984), (2480, 112861), (2576, 108655), (2804, 99820), (2852, 98140), (3220, 86924), (3472, 80615), (3505, 79856), (3565, 78512), (4340, 64492), (4907, 57040), (4991, 56080), (5608, 49910), (5704, 49070), (6440, 43462), (7010, 39928), (7130, 39256), (8680, 32246), (9814, 28520), (9982, 28040), (11216, 24955), (11408, 24535), (12880, 21731), (14020, 19964), (14260, 19628), (16123, 17360)]