25480

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{13}}^1$

素因数の和:38

約数の個数: 48

約数和(自身を含む): 71820

約数和(自身を除く): 46340

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 35, 40, 49, 52, 56, 65, 70, 91, 98, 104, 130, 140, 182, 196, 245, 260, 280, 364, 392, 455, 490, 520, 637, 728, 910, 980, 1274, 1820, 1960, 2548, 3185, 3640, 5096, 6370, 12740, 25480]

約数ペア:

[(1, 25480), (2, 12740), (4, 6370), (5, 5096), (7, 3640), (8, 3185), (10, 2548), (13, 1960), (14, 1820), (20, 1274), (26, 980), (28, 910), (35, 728), (40, 637), (49, 520), (52, 490), (56, 455), (65, 392), (70, 364), (91, 280), (98, 260), (104, 245), (130, 196), (140, 182)]