12905560

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{16981}}^1$

素因数の和:17011

約数の個数: 32

約数和(自身を含む): 30567600

約数和(自身を除く): 17662040

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 760, 16981, 33962, 67924, 84905, 135848, 169810, 322639, 339620, 645278, 679240, 1290556, 1613195, 2581112, 3226390, 6452780, 12905560]

約数ペア:

[(1, 12905560), (2, 6452780), (4, 3226390), (5, 2581112), (8, 1613195), (10, 1290556), (19, 679240), (20, 645278), (38, 339620), (40, 322639), (76, 169810), (95, 135848), (152, 84905), (190, 67924), (380, 33962), (760, 16981)]