3156640

素因数分解:

$2^5\times 5^1\times {\mathrm{109}}^1\times {\mathrm{181}}^1$

素因数の和:305

約数の個数: 48

約数和(自身を含む): 7567560

約数和(自身を除く): 4410920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 109, 160, 181, 218, 362, 436, 545, 724, 872, 905, 1090, 1448, 1744, 1810, 2180, 2896, 3488, 3620, 4360, 5792, 7240, 8720, 14480, 17440, 19729, 28960, 39458, 78916, 98645, 157832, 197290, 315664, 394580, 631328, 789160, 1578320, 3156640]

約数ペア:

[(1, 3156640), (2, 1578320), (4, 789160), (5, 631328), (8, 394580), (10, 315664), (16, 197290), (20, 157832), (32, 98645), (40, 78916), (80, 39458), (109, 28960), (160, 19729), (181, 17440), (218, 14480), (362, 8720), (436, 7240), (545, 5792), (724, 4360), (872, 3620), (905, 3488), (1090, 2896), (1448, 2180), (1744, 1810)]