81413690

素因数分解:

$2^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{139}}^1\times {\mathrm{1583}}^1$

素因数の和:1766

約数の個数: 32

約数和(自身を含む): 151683840

約数和(自身を除く): 70270150

約数列:

[1, 2, 5, 10, 37, 74, 139, 185, 278, 370, 695, 1390, 1583, 3166, 5143, 7915, 10286, 15830, 25715, 51430, 58571, 117142, 220037, 292855, 440074, 585710, 1100185, 2200370, 8141369, 16282738, 40706845, 81413690]

約数ペア:

[(1, 81413690), (2, 40706845), (5, 16282738), (10, 8141369), (37, 2200370), (74, 1100185), (139, 585710), (185, 440074), (278, 292855), (370, 220037), (695, 117142), (1390, 58571), (1583, 51430), (3166, 25715), (5143, 15830), (7915, 10286)]