278355280

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{4177}}^1$

素因数の和:4221

約数の個数: 120

約数和(自身を含む): 797312808

約数和(自身を除く): 518957528

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 17, 20, 28, 34, 35, 40, 49, 56, 68, 70, 80, 85, 98, 112, 119, 136, 140, 170, 196, 238, 245, 272, 280, 340, 392, 476, 490, 560, 595, 680, 784, 833, 952, 980, 1190, 1360, 1666, 1904, 1960, 2380, 3332, 3920, 4165, 4177, 4760, 6664, 8330, 8354, 9520, 13328, 16660, 16708, 20885, 29239, 33320, 33416, 41770, 58478, 66640, 66832, 71009, 83540, 116956, 142018, 146195, 167080, 204673, 233912, 284036, 292390, 334160, 355045, 409346, 467824, 497063, 568072, 584780, 710090, 818692, 994126, 1023365, 1136144, 1169560, 1420180, 1637384, 1988252, 2046730, 2339120, 2485315, 2840360, 3274768, 3479441, 3976504, 4093460, 4970630, 5680720, 6958882, 7953008, 8186920, 9941260, 13917764, 16373840, 17397205, 19882520, 27835528, 34794410, 39765040, 55671056, 69588820, 139177640, 278355280]

約数ペア:

[(1, 278355280), (2, 139177640), (4, 69588820), (5, 55671056), (7, 39765040), (8, 34794410), (10, 27835528), (14, 19882520), (16, 17397205), (17, 16373840), (20, 13917764), (28, 9941260), (34, 8186920), (35, 7953008), (40, 6958882), (49, 5680720), (56, 4970630), (68, 4093460), (70, 3976504), (80, 3479441), (85, 3274768), (98, 2840360), (112, 2485315), (119, 2339120), (136, 2046730), (140, 1988252), (170, 1637384), (196, 1420180), (238, 1169560), (245, 1136144), (272, 1023365), (280, 994126), (340, 818692), (392, 710090), (476, 584780), (490, 568072), (560, 497063), (595, 467824), (680, 409346), (784, 355045), (833, 334160), (952, 292390), (980, 284036), (1190, 233912), (1360, 204673), (1666, 167080), (1904, 146195), (1960, 142018), (2380, 116956), (3332, 83540), (3920, 71009), (4165, 66832), (4177, 66640), (4760, 58478), (6664, 41770), (8330, 33416), (8354, 33320), (9520, 29239), (13328, 20885), (16660, 16708)]