81460920

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{15787}}^1$

素因数の和:15844

約数の個数: 64

約数和(自身を含む): 250081920

約数和(自身を除く): 168621000

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 43, 60, 86, 120, 129, 172, 215, 258, 344, 430, 516, 645, 860, 1032, 1290, 1720, 2580, 5160, 15787, 31574, 47361, 63148, 78935, 94722, 126296, 157870, 189444, 236805, 315740, 378888, 473610, 631480, 678841, 947220, 1357682, 1894440, 2036523, 2715364, 3394205, 4073046, 5430728, 6788410, 8146092, 10182615, 13576820, 16292184, 20365230, 27153640, 40730460, 81460920]

約数ペア:

[(1, 81460920), (2, 40730460), (3, 27153640), (4, 20365230), (5, 16292184), (6, 13576820), (8, 10182615), (10, 8146092), (12, 6788410), (15, 5430728), (20, 4073046), (24, 3394205), (30, 2715364), (40, 2036523), (43, 1894440), (60, 1357682), (86, 947220), (120, 678841), (129, 631480), (172, 473610), (215, 378888), (258, 315740), (344, 236805), (430, 189444), (516, 157870), (645, 126296), (860, 94722), (1032, 78935), (1290, 63148), (1720, 47361), (2580, 31574), (5160, 15787)]