28225665

素因数分解:

$3^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1787}}^1$

素因数の和:1820

約数の個数: 48

約数和(自身を含む): 54669888

約数和(自身を除く): 26444223

約数列:

[1, 3, 5, 9, 13, 15, 27, 39, 45, 65, 81, 117, 135, 195, 243, 351, 405, 585, 1053, 1215, 1755, 1787, 3159, 5265, 5361, 8935, 15795, 16083, 23231, 26805, 48249, 69693, 80415, 116155, 144747, 209079, 241245, 348465, 434241, 627237, 723735, 1045395, 1881711, 2171205, 3136185, 5645133, 9408555, 28225665]

約数ペア:

[(1, 28225665), (3, 9408555), (5, 5645133), (9, 3136185), (13, 2171205), (15, 1881711), (27, 1045395), (39, 723735), (45, 627237), (65, 434241), (81, 348465), (117, 241245), (135, 209079), (195, 144747), (243, 116155), (351, 80415), (405, 69693), (585, 48249), (1053, 26805), (1215, 23231), (1755, 16083), (1787, 15795), (3159, 8935), (5265, 5361)]