25172420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{13831}}^1$

素因数の和:13860

約数の個数: 48

約数和(自身を含む): 65065728

約数和(自身を除く): 39893308

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 140, 182, 260, 364, 455, 910, 1820, 13831, 27662, 55324, 69155, 96817, 138310, 179803, 193634, 276620, 359606, 387268, 484085, 719212, 899015, 968170, 1258621, 1798030, 1936340, 2517242, 3596060, 5034484, 6293105, 12586210, 25172420]

約数ペア:

[(1, 25172420), (2, 12586210), (4, 6293105), (5, 5034484), (7, 3596060), (10, 2517242), (13, 1936340), (14, 1798030), (20, 1258621), (26, 968170), (28, 899015), (35, 719212), (52, 484085), (65, 387268), (70, 359606), (91, 276620), (130, 193634), (140, 179803), (182, 138310), (260, 96817), (364, 69155), (455, 55324), (910, 27662), (1820, 13831)]