25680980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{98773}}^1$

素因数の和:98795

約数の個数: 24

約数和(自身を含む): 58079112

約数和(自身を除く): 32398132

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 98773, 197546, 395092, 493865, 987730, 1284049, 1975460, 2568098, 5136196, 6420245, 12840490, 25680980]

約数ペア:

[(1, 25680980), (2, 12840490), (4, 6420245), (5, 5136196), (10, 2568098), (13, 1975460), (20, 1284049), (26, 987730), (52, 493865), (65, 395092), (130, 197546), (260, 98773)]