19901640

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{15077}}^1$

素因数の和:15102

約数の個数: 64

約数和(自身を含む): 65136960

約数和(自身を除く): 45235320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 20, 22, 24, 30, 33, 40, 44, 55, 60, 66, 88, 110, 120, 132, 165, 220, 264, 330, 440, 660, 1320, 15077, 30154, 45231, 60308, 75385, 90462, 120616, 150770, 165847, 180924, 226155, 301540, 331694, 361848, 452310, 497541, 603080, 663388, 829235, 904620, 995082, 1326776, 1658470, 1809240, 1990164, 2487705, 3316940, 3980328, 4975410, 6633880, 9950820, 19901640]

約数ペア:

[(1, 19901640), (2, 9950820), (3, 6633880), (4, 4975410), (5, 3980328), (6, 3316940), (8, 2487705), (10, 1990164), (11, 1809240), (12, 1658470), (15, 1326776), (20, 995082), (22, 904620), (24, 829235), (30, 663388), (33, 603080), (40, 497541), (44, 452310), (55, 361848), (60, 331694), (66, 301540), (88, 226155), (110, 180924), (120, 165847), (132, 150770), (165, 120616), (220, 90462), (264, 75385), (330, 60308), (440, 45231), (660, 30154), (1320, 15077)]