25201215

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{1873}}^1$

素因数の和:1920

約数の個数: 48

約数和(自身を含む): 49113792

約数和(自身を除く): 23912577

約数列:

[1, 3, 5, 9, 13, 15, 23, 39, 45, 65, 69, 115, 117, 195, 207, 299, 345, 585, 897, 1035, 1495, 1873, 2691, 4485, 5619, 9365, 13455, 16857, 24349, 28095, 43079, 73047, 84285, 121745, 129237, 215395, 219141, 365235, 387711, 560027, 646185, 1095705, 1680081, 1938555, 2800135, 5040243, 8400405, 25201215]

約数ペア:

[(1, 25201215), (3, 8400405), (5, 5040243), (9, 2800135), (13, 1938555), (15, 1680081), (23, 1095705), (39, 646185), (45, 560027), (65, 387711), (69, 365235), (115, 219141), (117, 215395), (195, 129237), (207, 121745), (299, 84285), (345, 73047), (585, 43079), (897, 28095), (1035, 24349), (1495, 16857), (1873, 13455), (2691, 9365), (4485, 5619)]