4025440

素因数分解:

$2^5\times 5^1\times {\mathrm{139}}^1\times {\mathrm{181}}^1$

素因数の和:335

約数の個数: 48

約数和(自身を含む): 9631440

約数和(自身を除く): 5606000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 139, 160, 181, 278, 362, 556, 695, 724, 905, 1112, 1390, 1448, 1810, 2224, 2780, 2896, 3620, 4448, 5560, 5792, 7240, 11120, 14480, 22240, 25159, 28960, 50318, 100636, 125795, 201272, 251590, 402544, 503180, 805088, 1006360, 2012720, 4025440]

約数ペア:

[(1, 4025440), (2, 2012720), (4, 1006360), (5, 805088), (8, 503180), (10, 402544), (16, 251590), (20, 201272), (32, 125795), (40, 100636), (80, 50318), (139, 28960), (160, 25159), (181, 22240), (278, 14480), (362, 11120), (556, 7240), (695, 5792), (724, 5560), (905, 4448), (1112, 3620), (1390, 2896), (1448, 2780), (1810, 2224)]