12953240

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{4561}}^1$

素因数の和:4643

約数の個数: 32

約数和(自身を含む): 29561760

約数和(自身を除く): 16608520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 1420, 2840, 4561, 9122, 18244, 22805, 36488, 45610, 91220, 182440, 323831, 647662, 1295324, 1619155, 2590648, 3238310, 6476620, 12953240]

約数ペア:

[(1, 12953240), (2, 6476620), (4, 3238310), (5, 2590648), (8, 1619155), (10, 1295324), (20, 647662), (40, 323831), (71, 182440), (142, 91220), (284, 45610), (355, 36488), (568, 22805), (710, 18244), (1420, 9122), (2840, 4561)]