291277865

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{149}}^1\times {\mathrm{191}}^1$

素因数の和:457

約数の個数: 32

約数和(自身を含む): 373248000

約数和(自身を除く): 81970135

約数列:

[1, 5, 23, 89, 115, 149, 191, 445, 745, 955, 2047, 3427, 4393, 10235, 13261, 16999, 17135, 21965, 28459, 66305, 84995, 142295, 305003, 390977, 654557, 1525015, 1954885, 2532851, 3272785, 12664255, 58255573, 291277865]

約数ペア:

[(1, 291277865), (5, 58255573), (23, 12664255), (89, 3272785), (115, 2532851), (149, 1954885), (191, 1525015), (445, 654557), (745, 390977), (955, 305003), (2047, 142295), (3427, 84995), (4393, 66305), (10235, 28459), (13261, 21965), (16999, 17135)]