281787520

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{2029}}^1$

素因数の和:2086

約数の個数: 128

約数和(自身を含む): 795110400

約数和(自身を除く): 513322880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 32, 35, 40, 56, 62, 64, 70, 80, 112, 124, 128, 140, 155, 160, 217, 224, 248, 280, 310, 320, 434, 448, 496, 560, 620, 640, 868, 896, 992, 1085, 1120, 1240, 1736, 1984, 2029, 2170, 2240, 2480, 3472, 3968, 4058, 4340, 4480, 4960, 6944, 8116, 8680, 9920, 10145, 13888, 14203, 16232, 17360, 19840, 20290, 27776, 28406, 32464, 34720, 40580, 56812, 62899, 64928, 69440, 71015, 81160, 113624, 125798, 129856, 138880, 142030, 162320, 227248, 251596, 259712, 284060, 314495, 324640, 440293, 454496, 503192, 568120, 628990, 649280, 880586, 908992, 1006384, 1136240, 1257980, 1298560, 1761172, 1817984, 2012768, 2201465, 2272480, 2515960, 3522344, 4025536, 4402930, 4544960, 5031920, 7044688, 8051072, 8805860, 9089920, 10063840, 14089376, 17611720, 20127680, 28178752, 35223440, 40255360, 56357504, 70446880, 140893760, 281787520]

約数ペア:

[(1, 281787520), (2, 140893760), (4, 70446880), (5, 56357504), (7, 40255360), (8, 35223440), (10, 28178752), (14, 20127680), (16, 17611720), (20, 14089376), (28, 10063840), (31, 9089920), (32, 8805860), (35, 8051072), (40, 7044688), (56, 5031920), (62, 4544960), (64, 4402930), (70, 4025536), (80, 3522344), (112, 2515960), (124, 2272480), (128, 2201465), (140, 2012768), (155, 1817984), (160, 1761172), (217, 1298560), (224, 1257980), (248, 1136240), (280, 1006384), (310, 908992), (320, 880586), (434, 649280), (448, 628990), (496, 568120), (560, 503192), (620, 454496), (640, 440293), (868, 324640), (896, 314495), (992, 284060), (1085, 259712), (1120, 251596), (1240, 227248), (1736, 162320), (1984, 142030), (2029, 138880), (2170, 129856), (2240, 125798), (2480, 113624), (3472, 81160), (3968, 71015), (4058, 69440), (4340, 64928), (4480, 62899), (4960, 56812), (6944, 40580), (8116, 34720), (8680, 32464), (9920, 28406), (10145, 27776), (13888, 20290), (14203, 19840), (16232, 17360)]