28048425

素因数分解:

$3^1\times 5^2\times {\mathrm{47}}^1\times {\mathrm{73}}^1\times {\mathrm{109}}^1$

素因数の和:242

約数の個数: 48

約数和(自身を含む): 48449280

約数和(自身を除く): 20400855

約数列:

[1, 3, 5, 15, 25, 47, 73, 75, 109, 141, 219, 235, 327, 365, 545, 705, 1095, 1175, 1635, 1825, 2725, 3431, 3525, 5123, 5475, 7957, 8175, 10293, 15369, 17155, 23871, 25615, 39785, 51465, 76845, 85775, 119355, 128075, 198925, 257325, 373979, 384225, 596775, 1121937, 1869895, 5609685, 9349475, 28048425]

約数ペア:

[(1, 28048425), (3, 9349475), (5, 5609685), (15, 1869895), (25, 1121937), (47, 596775), (73, 384225), (75, 373979), (109, 257325), (141, 198925), (219, 128075), (235, 119355), (327, 85775), (365, 76845), (545, 51465), (705, 39785), (1095, 25615), (1175, 23871), (1635, 17155), (1825, 15369), (2725, 10293), (3431, 8175), (3525, 7957), (5123, 5475)]