13965080

素因数分解:

$2^3\times 5^1\times {\mathrm{109}}^1\times {\mathrm{3203}}^1$

素因数の和:3323

約数の個数: 32

約数和(自身を含む): 31719600

約数和(自身を除く): 17754520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 109, 218, 436, 545, 872, 1090, 2180, 3203, 4360, 6406, 12812, 16015, 25624, 32030, 64060, 128120, 349127, 698254, 1396508, 1745635, 2793016, 3491270, 6982540, 13965080]

約数ペア:

[(1, 13965080), (2, 6982540), (4, 3491270), (5, 2793016), (8, 1745635), (10, 1396508), (20, 698254), (40, 349127), (109, 128120), (218, 64060), (436, 32030), (545, 25624), (872, 16015), (1090, 12812), (2180, 6406), (3203, 4360)]