28708735

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{199}}^1$

素因数の和:319

約数の個数: 32

約数和(自身を含む): 39283200

約数和(自身を除く): 10574465

約数列:

[1, 5, 11, 43, 55, 61, 199, 215, 305, 473, 671, 995, 2189, 2365, 2623, 3355, 8557, 10945, 12139, 13115, 28853, 42785, 60695, 94127, 133529, 144265, 470635, 521977, 667645, 2609885, 5741747, 28708735]

約数ペア:

[(1, 28708735), (5, 5741747), (11, 2609885), (43, 667645), (55, 521977), (61, 470635), (199, 144265), (215, 133529), (305, 94127), (473, 60695), (671, 42785), (995, 28853), (2189, 13115), (2365, 12139), (2623, 10945), (3355, 8557)]