28455280

素因数分解:

$2^4\times 5^1\times 7^3\times {\mathrm{17}}^1\times {\mathrm{61}}^1$

素因数の和:112

約数の個数: 160

約数和(自身を含む): 83030400

約数和(自身を除く): 54575120

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 17, 20, 28, 34, 35, 40, 49, 56, 61, 68, 70, 80, 85, 98, 112, 119, 122, 136, 140, 170, 196, 238, 244, 245, 272, 280, 305, 340, 343, 392, 427, 476, 488, 490, 560, 595, 610, 680, 686, 784, 833, 854, 952, 976, 980, 1037, 1190, 1220, 1360, 1372, 1666, 1708, 1715, 1904, 1960, 2074, 2135, 2380, 2440, 2744, 2989, 3332, 3416, 3430, 3920, 4148, 4165, 4270, 4760, 4880, 5185, 5488, 5831, 5978, 6664, 6832, 6860, 7259, 8296, 8330, 8540, 9520, 10370, 11662, 11956, 13328, 13720, 14518, 14945, 16592, 16660, 17080, 20740, 20923, 23324, 23912, 27440, 29036, 29155, 29890, 33320, 34160, 36295, 41480, 41846, 46648, 47824, 50813, 58072, 58310, 59780, 66640, 72590, 82960, 83692, 93296, 101626, 104615, 116144, 116620, 119560, 145180, 167384, 203252, 209230, 233240, 239120, 254065, 290360, 334768, 355691, 406504, 418460, 466480, 508130, 580720, 711382, 813008, 836920, 1016260, 1422764, 1673840, 1778455, 2032520, 2845528, 3556910, 4065040, 5691056, 7113820, 14227640, 28455280]

約数ペア:

[(1, 28455280), (2, 14227640), (4, 7113820), (5, 5691056), (7, 4065040), (8, 3556910), (10, 2845528), (14, 2032520), (16, 1778455), (17, 1673840), (20, 1422764), (28, 1016260), (34, 836920), (35, 813008), (40, 711382), (49, 580720), (56, 508130), (61, 466480), (68, 418460), (70, 406504), (80, 355691), (85, 334768), (98, 290360), (112, 254065), (119, 239120), (122, 233240), (136, 209230), (140, 203252), (170, 167384), (196, 145180), (238, 119560), (244, 116620), (245, 116144), (272, 104615), (280, 101626), (305, 93296), (340, 83692), (343, 82960), (392, 72590), (427, 66640), (476, 59780), (488, 58310), (490, 58072), (560, 50813), (595, 47824), (610, 46648), (680, 41846), (686, 41480), (784, 36295), (833, 34160), (854, 33320), (952, 29890), (976, 29155), (980, 29036), (1037, 27440), (1190, 23912), (1220, 23324), (1360, 20923), (1372, 20740), (1666, 17080), (1708, 16660), (1715, 16592), (1904, 14945), (1960, 14518), (2074, 13720), (2135, 13328), (2380, 11956), (2440, 11662), (2744, 10370), (2989, 9520), (3332, 8540), (3416, 8330), (3430, 8296), (3920, 7259), (4148, 6860), (4165, 6832), (4270, 6664), (4760, 5978), (4880, 5831), (5185, 5488)]