159280

素因数分解:

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

素因数の和:205

約数の個数: 40

約数和(自身を含む): 406224

約数和(自身を除く): 246944

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 181, 220, 362, 440, 724, 880, 905, 1448, 1810, 1991, 2896, 3620, 3982, 7240, 7964, 9955, 14480, 15928, 19910, 31856, 39820, 79640, 159280]

約数ペア:

[(1, 159280), (2, 79640), (4, 39820), (5, 31856), (8, 19910), (10, 15928), (11, 14480), (16, 9955), (20, 7964), (22, 7240), (40, 3982), (44, 3620), (55, 2896), (80, 1991), (88, 1810), (110, 1448), (176, 905), (181, 880), (220, 724), (362, 440)]