25906480

素因数分解:

$2^4\times 5^1\times {\mathrm{71}}^1\times {\mathrm{4561}}^1$

素因数の和:4645

約数の個数: 40

約数和(自身を含む): 61094304

約数和(自身を除く): 35187824

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 71, 80, 142, 284, 355, 568, 710, 1136, 1420, 2840, 4561, 5680, 9122, 18244, 22805, 36488, 45610, 72976, 91220, 182440, 323831, 364880, 647662, 1295324, 1619155, 2590648, 3238310, 5181296, 6476620, 12953240, 25906480]

約数ペア:

[(1, 25906480), (2, 12953240), (4, 6476620), (5, 5181296), (8, 3238310), (10, 2590648), (16, 1619155), (20, 1295324), (40, 647662), (71, 364880), (80, 323831), (142, 182440), (284, 91220), (355, 72976), (568, 45610), (710, 36488), (1136, 22805), (1420, 18244), (2840, 9122), (4561, 5680)]