16087280

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{181}}^1$

素因数の和:306

約数の個数: 80

約数和(自身を含む): 41434848

約数和(自身を除く): 25347568

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 101, 110, 176, 181, 202, 220, 362, 404, 440, 505, 724, 808, 880, 905, 1010, 1111, 1448, 1616, 1810, 1991, 2020, 2222, 2896, 3620, 3982, 4040, 4444, 5555, 7240, 7964, 8080, 8888, 9955, 11110, 14480, 15928, 17776, 18281, 19910, 22220, 31856, 36562, 39820, 44440, 73124, 79640, 88880, 91405, 146248, 159280, 182810, 201091, 292496, 365620, 402182, 731240, 804364, 1005455, 1462480, 1608728, 2010910, 3217456, 4021820, 8043640, 16087280]

約数ペア:

[(1, 16087280), (2, 8043640), (4, 4021820), (5, 3217456), (8, 2010910), (10, 1608728), (11, 1462480), (16, 1005455), (20, 804364), (22, 731240), (40, 402182), (44, 365620), (55, 292496), (80, 201091), (88, 182810), (101, 159280), (110, 146248), (176, 91405), (181, 88880), (202, 79640), (220, 73124), (362, 44440), (404, 39820), (440, 36562), (505, 31856), (724, 22220), (808, 19910), (880, 18281), (905, 17776), (1010, 15928), (1111, 14480), (1448, 11110), (1616, 9955), (1810, 8888), (1991, 8080), (2020, 7964), (2222, 7240), (2896, 5555), (3620, 4444), (3982, 4040)]