28239465

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{1877}}^1$

素因数の和:1961

約数の個数: 32

約数和(自身を含む): 48677760

約数和(自身を除く): 20438295

約数列:

[1, 3, 5, 15, 17, 51, 59, 85, 177, 255, 295, 885, 1003, 1877, 3009, 5015, 5631, 9385, 15045, 28155, 31909, 95727, 110743, 159545, 332229, 478635, 553715, 1661145, 1882631, 5647893, 9413155, 28239465]

約数ペア:

[(1, 28239465), (3, 9413155), (5, 5647893), (15, 1882631), (17, 1661145), (51, 553715), (59, 478635), (85, 332229), (177, 159545), (255, 110743), (295, 95727), (885, 31909), (1003, 28155), (1877, 15045), (3009, 9385), (5015, 5631)]